Wyniki wyszukiwania dla: bio-ceramics

• FEBS Open Bio

  Czasopisma

  ISSN: 2211-5463

• Bio-Medical Engineering

  Czasopisma

  ISSN: 0006-3398

• Revista Bio Ciencias

  Czasopisma

  ISSN: 2007-3380

• Materials Today Bio

  Czasopisma

  eISSN: 2590-0064

• WPŁYW ŚREDNIEJ MASY CZĄSTECZKOWEJ BIO-POLIOLU NA STRUKTURĘ CHEMICZNĄ I WŁAŚCIWOŚCI TERMOPLASTYCZNYCH BIO-POLIURETANÓW

  Publikacja

  • P. Kasprzyk
  • J. Datta

  - Rok 2019

  Od wielu lat wiodącym trendem w dziedzinie materiałów polimerowych, w tym poliuretanów jest poszukiwanie nowych alternatywnych monomerów [1]. W związku z tym głównym celem stało się zastąpienie surowców pochodzenia petrochemicznego monomerami otrzymywanymi z surowców roślinnych [1,2]. Obecnie na rynku istnieje wiele rodzajów materiałów polimerowych, jednakże to poliuretany stanowią najprężniej rozwijającą się grupę materiałów [2]....

  Pełny tekst do pobrania w serwisie zewnętrznym

• Superconducting properties of BiPbSrCaCuO and BiSrCaCuO glass-ceramics

  Publikacja

  • W. Miller
  • K. Borówko
  • M. Gazda
  • S. Stizza
  • R. Natali

  - ACTA PHYSICA POLONICA A - Rok 2006

  W pracy zbadano główne różnice pomiędzy właściwościami nadprzewodzącymi krystalizowanych szkieł BiPbSrCaCuO i BiSrCaCuO. Obie grupy materiałów wytwarzano w takich samych warunkach i zawierały one podobne ilości fazy nadprzewodzącej 2212. Mimo to, właściwości elektryczne w stanie normalnym oraz właściwości nadprzewodzące znacznie się różnią. Głównym źródłem różnic są różnice mikrostruktury obu grup materiałów.

  Pełny tekst do pobrania w portalu

• Influence of Flat Lapping Kinematics on Machinability of Ceramics

  Publikacja

  • A. Barylski
  • M. Deja

  - Solid State Phenomena - Rok 2013

  New tools for flat grinding of ceramics are presented in the paper. Electroplated CBN tools (B64 and B107) were used in a modified single-disc lapping machine configuration. The results from experiments, such as the material removal rate and surface roughness parameters are presented and analyzed. Numerical simulations, based on the model for the shape error and tool wear estimation in machining with flat lapping kinematics, are...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Molten salt synthesis of conducting and superconducting ceramics

  Publikacja

  • K. Kolincio
  • K. Gdula-Kasica
  • A. D. Mielewczyk-Gryń
  • T. Izdebski
  • M. Gazda

  - ACTA PHYSICA POLONICA A - Rok 2010

  Publikacja przedstawia wyniki badań nadprzewoników oraz przewodników jonowych metodą syntezy w stopionej soli.

  Pełny tekst do pobrania w portalu

• Fabrication of Bi6Fe2Ti3O18 Ceramics by Mixed Oxide Method

  Publikacja

  • A. Lisińska-Czekaj

  - MATERIALS SCIENCE FORUM - Rok 2012

  In the present study Bi6Fe2Ti3O18 (BFTO) ceramics has been fabricated by solid state reaction from the mixture of simple oxides viz. Bi2O3, TiO2 and Fe2O3. Stoichiometric mixture of the powders was thermally analyzed so parameters of the thermal treatment were determined. The EDS measurements have shown conservation of the chemical composition of the ceramic powder after calcination. Hot-pressing method was used for final densification...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Properties of LiMnBO3 glasses and nanostructured glass-ceramics

  Publikacja

  • P. Michalski
  • A. Gołębiewska
  • J. Trebosc
  • O. Lafon
  • T. Pietrzak
  • J. Ryl
  • J. Nowiński
  • M. Wasiucionek
  • J. Garbarczyk

  - SOLID STATE IONICS - Rok 2019

  Polycrystalline LiMnBO3 is a promising cathode material for Li-ion batteries. In this work, we investigated the thermal, structural and electrical properties of glassy and nanocrystallized materials having the same chemical composition. The original glass was obtained via a standard melt-quenching method. SEM and 7Li solid-state NMR indicate that it contains a mixture of two distinct glassy phases. The results suggest that the...

  Pełny tekst do pobrania w portalu

• Segmented bio-based polyurethane composites containing powdered cellulose obtained from novel bio-based diisocyanate mixtures

  Publikacja

  • E. Głowińska
  • P. Kasprzyk
  • J. Datta

  - WOOD SCIENCE AND TECHNOLOGY - Rok 2021

  A considerable number of research works focus on the positive influence of cellulose on the properties of polymer-based composites and their wide range of application possibilities. The present work is focused on the synthesis of novel bio-based polyurethane (bio-PU) composites filled with powdered cellulose (microcellulose, MC) in an amount of 5 wt.%. Bio-PU composites were synthesized via a non-solvent prepolymer method. First,...

  Pełny tekst do pobrania w portalu

• Bio-Based Polyurethane Composites and Hybrid Composites Containing a New Type of Bio-Polyol and Addition of Natural and Synthetic Fibers

  Publikacja

  • A. Olszewski
  • P. Kosmela
  • A. D. Mielewczyk-Gryń
  • Ł. Piszczyk

  - Materials - Rok 2020

  This article describes how new bio-based polyol during the liquefaction process can be obtained. Selected polyol was tested in the production of polyurethane resins. Moreover, this research describes the process of manufacturing polyurethane materials and the impact of two different types of fibers—synthetic and natural (glass and sisal fibers)—on the properties of composites. The best properties were achieved at a reaction temperature...

  Pełny tekst do pobrania w portalu

• Synteza, struktura, właściwości bio-poliuretanów i kompozytów bio-polieterouretanowych wytworzonych z udziałem zmodyfikowanych surowców naturalnych

  Publikacja

  • E. Głowińska

  - Rok 2015

  Od wielu lat obserwuje się rosnące zainteresowanie wykorzystania olejów naturalnych w syntezach materiałów polimerowych. Rozprawa doktorska obejmuje przegląd literaturowy w zakresie: bio-polioli i poliuretanów otrzymanych z ich udziałem, włókien naturalnych oraz metod ich funkcjonalizacji i kompozytów bio-poliuretanowych a także opis rezultatów przeprowadzonych prac badawczych. W rozdziale pierwszym części eksperymentalnej rozprawy...

• Modelling of bio-mechanical objects: recent examples

  Publikacja

  • S. Sobieszczyk

  - Rok 2006

  W opracowaniu przedstawiono dwa wykorzystania modelowania bio-mechanicznego wybranych obiektów: modelowanie zachowania mięśni w układzie ramię-przedramię oraz wstępny projekt protezy dłoni przy użyciu materiałów z pamięcią kształtu. Przedstawiono wyniki badań symulacyjnych oraz opis dynamiki działania układów sterowania dla protezy dłoni oraz dla układu ramię-przedramię.

• Polynomial Chaos Expansion in Bio-and Structural Mechanics

  Publikacja

  • K. Szepietowska

  - Rok 2022

  This monograph presents a probabilistic approach to modelling the mechanics of materials and structures where the modelled performance is influenced by uncertainty in the input parameters. The work is interdisciplinary and the methods described are applied to medical and civil engineering problems. The motivation for this work was the necessity of mechanics-based approaches in the modelling and simulation of implants used in the...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Polynomial Chaos Expansion in Bio- and Structural Mechanics

  Publikacja

  • K. Szepietowska

  - Rok 2018

  This thesis presents a probabilistic approach to modelling the mechanics of materials and structures where the modelled performance is influenced by uncertainty in the input parameters. The work is interdisciplinary and the methods described are applied to medical and civil engineering problems. The motivation for this work was the necessity of mechanics-based approaches in the modelling and simulation of implants used in the repair...

• Bio polyetherurethane composites with high content of natural ingredients: hydroxylated soybean oil based polyol, bio glycol and microcrystalline cellulose

  Publikacja

  • E. Głowińska
  • J. Datta

  - CELLULOSE - Rok 2016

  In our study, we focused on obtaining bio-polyurethane composites using bio-components such as bio glycol, modified natural oil-based polyol, and microcrystalline cellulose (MCC). The pre-polymer method was used to prepare the bio polyurethane matrix. Prepolymer was synthesized using 4,4’-diphenylmethane diisocyanate (MDI) and a polyol mixture containing 50 wt.% of commercial polyether and 50 wt.% of hydroxylated soybean oil (H3)....

  Pełny tekst do pobrania w portalu

• Electrical properties of nanocrystalline Sm-doped ceria ceramics

  Publikacja

  • P. Jasiński

  - SOLID STATE IONICS - Rok 2006

  Właściwości ceramiki z cerii zależa zwykle silnie od struktury ziaren. W pracy przedstawiono właściwości elektryczne ceramiki z cerii domieszkowanej samarem wykonanje w technologii 'net shape' posiadającej strukturę nanokrystaliczną.

  Pełny tekst do pobrania w serwisie zewnętrznym

• Finishing of Ceramics in a Single-Disk Lapping Machine Configuration

  Publikacja

  • A. Barylski
  • M. Deja

  - Solid State Phenomena - Rok 2010

  Przedstawiono metodę obróbki ceramiki technicznej na zmodifikowanej docierarce jednotarczowej z niezależnym napędem pierścienia prowadzącego. Omówiono przebieg obróbki z wykorzystaniem nowych narzędzi i zastosowaniem ziarna wiązanego.

  Pełny tekst do pobrania w serwisie zewnętrznym

• Microstructural and electrical properties of Y0.07Sr0.93-xTiO3 perovskite ceramics

  Publikacja

  • T. Miruszewski
  • B. Bochentyn
  • J. Karczewski
  • M. Gazda
  • B. Kusz

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Rok 2012

  In order to find a relationship between electrical and microstructural properties, yttrium-doped strontium titanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work. It has been observed that yttrium doping can affect the electrical properties of SrTiO3 to a great extent. Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry. The...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Wear of Electroplated Tools Used for Flat Grinding of Ceramics

  Publikacja

  • M. Deja

  - Solid State Phenomena - Rok 2013

  Two methods for the abrasive properties evaluation, based on the image processing, are presented in the paper. Image processing analysis was developed to evaluate quickly the abrasive properties as the tool wears down. The coefficient based on the image brightness was calculated and additional analysis was based on the number of grains located on the active surface of the tool before and after machining. The active surfaces of...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Electrical and structural properties of Nb-doped SrTiO3 ceramics

  Publikacja

  • J. Karczewski
  • B. Riegel
  • M. Gazda
  • P. Jasiński
  • B. Kusz

  - JOURNAL OF ELECTROCERAMICS - Rok 2009

  Przebadano wpływ zawartości niobu na strukturę i własności elektryczne tytanianu strontu. Zbadany został wpływ warunków redukcji i porowatości na właściwości materiału. Za optymalne uznano domieszkowanie niobem w wysokości 2% molowych.

  Pełny tekst do pobrania w serwisie zewnętrznym

• Utilization of molten salt synthesis route in ceramics production

  Publikacja

  • A. D. Mielewczyk-Gryń

  - Rok 2011

  The molten salt synthesis method is widely used to prepare ceramic powders for various applications e.g. piezoelectric devices or electrolytes for solid oxide fuel cells. The usage of this method workdwide is quite common especially in piezoelectric powder synthesis. In this work several application of the method is presented and the advantages of this route are numbered.

• Influence of Processing Conditions on Crystal Structure of Bi6Fe2Ti3O18 Ceramics

  Publikacja

  • A. Lisińska-Czekaj
  • M. Lubina
  • D. Czekaj
  • M. Rerak
  • B. Garbarz-Glos
  • W. Bąk

  - ARCHIVES OF METALLURGY AND MATERIALS - Rok 2016

  Aim of the present research was to apply a solid state reaction route to fabricate Aurivillius-type ceramics described with the formula Bi6Fe2Ti3O18 (BFTO) and reveal the influence of processing conditions on its crystal structure. Pressureless sintering in ambient air was employed and the sintering temperatures were 850 and 1080 °C. It was found that the fabricated BFTO ceramics were multiphase ones. They consisted of two Bim+1Fem-3Ti3O3m+3...

  Pełny tekst do pobrania w portalu

• SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF NIOBIUM-DOPED HYDROXYAPATITE CERAMICS

  Publikacja

  • W. P. Korzeniewski
  • A. Witkowska

  - Engineering of Biomaterials / Inżynieria Biomateriałów - Rok 2019

  Hydroxyapatite (HAp) ceramic materials are considered as one of the most promising implant materials in bone surgery and in dentistry. They exhibit unique biocompatibility, bioactivity, and osteoconductivity, which are the most desirable biomaterial features. However, HAp itself is brittle, has low strength, high degree of crystallinity and low solubility at physiological pH. Doping synthetic HAp with metal ions plays an important...

  Pełny tekst do pobrania w portalu

• Modelling of dielectric properties of BiNbO4-based microwave ceramics

  Publikacja

  • D. Czekaj
  • A. Lisińska-Czekaj
  • B. Garbarz-Glos
  • W. Bąk

  - ARCHIVES OF METALLURGY AND MATERIALS - Rok 2020

  In the present paper results of the studies devoted to computer simulations of dielectric response of electroceramics in a frequency domain as well as analysis of the experimental data are given. As an object of investigations BiNbO4-based microwave ceramics was taken. Simulations of the hypothetical impedance response of the ceramic system were performed under assumption of the brick-layer model. A strategy for analysis and modelling...

  Pełny tekst do pobrania w portalu

• Effect of Bi2O3 Excess on Morphology and Structure of BiNbO4 Ceramics

  Publikacja

  • D. Czekaj
  • A. Lisińska-Czekaj
  • K. Osińska
  • K. Biernacki

  - ARCHIVES OF METALLURGY AND MATERIALS - Rok 2013

  Goal of the present research was to fabricate BiNbO4 ceramics from the mixture of powders by the solid state reaction route and pressureless sintering at various temperatures (TS =8700C and TS =9100C) and study microstructure, phase composition and crystalline structure of BiNbO4 ceramics. Four batches were fabricated and examined, namely the one fabricated from the stoichiometric mixture of reagent – grade oxide powders, viz....

  Pełny tekst do pobrania w portalu

• POWDER METALLURGY AND METAL CERAMICS

  Czasopisma

  ISSN: 1068-1302 , eISSN: 1573-9066

• Physics-Based Coarse-Grained Modeling in Bio- and Nanochemistry

  Publikacja

  • A. Liwo
  • A. K. Sieradzan
  • A. S. Karczyńska
  • E. Lubecka
  • S. A. Samsonov
  • C. Czaplewski
  • P. Krupa
  • M. Mozolewska

  - Rok 2021

  Coarse-grained approaches, in which groups of atoms are represented by single interaction sites, are very important in biological and materials sciences because they enable us to cover the size- and time-scales by several orders of magnitude larger than those available all-atom simulations, while largely keeping the details of the systems studied. The coarse-grained approaches differ by the scheme of reduction and by the origin...

  Pełny tekst do pobrania w serwisie zewnętrznym

• EFFECT OF THE BIO-LUBRICANT ON THE LUBRICATINGPROPERTIES AND SURFACE OF THE FRICTION ZONE

  Publikacja

  • J. Drabik
  • R. Kozdrach
  • E. Osuch-Słomka

  - TRIBOLOGIA - Rok 2024

  Pełny tekst do pobrania w serwisie zewnętrznym

• Bio-based semi-aromatic polyesters for coating applications

  Publikacja

  • E. Gubbels
  • J. P. Drijfhout
  • C. Posthuma-van Tent
  • L. Jasińska-Walc
  • B. A. J. Noordover
  • C. E. Koning

  - PROGRESS IN ORGANIC COATINGS - Rok 2014

  Linear and branched bio-based semi-aromatic (co)polyesters were evaluated as resins for solvent-basedand powder coatings. Dimethyl-2,5-furandicarboxylate (DMF), 2,3-butanediol and various multifunc-tional comonomers were used to synthesize amorphous hydroxyl-end-capped (co)polyesters. The resinswere cross-linked using the -caprolactam blocked trimer of isophorone diisocyanate. Both the solvent-based and powder coatings proved to...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Challenges and recent advances in bio-based isocyanate production.

  Publikacja

  • J. Brzoska
  • J. Datta

  - GREEN CHEMISTRY - Rok 2023

  Polyurethanes (PUs) are key players in the plastics industry. According to the Global Polyurethane Market (2019–2023), their value in the global market reached $95.13 billion in 2019 and is expected to grow at a compound annual growth rate of 12%. This is in line with the increase in the number of research papers and patents on the synthesis and application of petroleum-based PUs (P-PUs) and biomass or green PUs (G-PUs) (from 67 657...

  Pełny tekst do pobrania w portalu

• BRITISH CERAMIC TRANSACTIONS

  Czasopisma

  ISSN: 0967-9782

• Determination of local polarization properties of PLZT ceramics by PS-OCT

  Publikacja

  • M. Strąkowski
  • J. Pluciński
  • A. Łoziński
  • B. Kosmowski

  - The European Physical Journal-Special Topics - Rok 2008

  .

• Microstructural and electrical properties of Y0.07Sr0.93-xTiO3-δ perovskite ceramics

  Publikacja

  • T. Miruszewski
  • B. Bochentyn
  • J. Karczewski
  • M. Gazda
  • B. Kusz

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Rok 2012

  In order to find a relationship between electrical and microstructural properties, yttrium-doped strontiumtitanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work.It has been observed that yttrium doping can affect the electrical properties of SrTiO3 to a great extent.Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry.The defect...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Effects of V2O5 Additive on Structure and Dielectric Properties of BiNbO4 Ceramics

  Publikacja

  • A. Lisińska-Czekaj
  • D. Czekaj
  • K. Osińska
  • M. Adamczyk

  - ARCHIVES OF METALLURGY AND MATERIALS - Rok 2013

  Goal of the present research was to investigate the influence of V2O5 additive on the structure and dielectric properties of BiNbO4 ceramics. To fabricate BiNbO4 ceramics with V2O5 added the solid state reaction route and pressureless sintering was utilized. Thus obtained ceramics was characterized in terms of its microstructure (SEM), chemical composition (EDS), phase composition and crystalline structure (X-ray phase and structural...

  Pełny tekst do pobrania w portalu

• Dielectric Spectroscopy Studies and Modelling of Piezoelectric Properties of Multiferroic Ceramics

  Publikacja

  • A. Lisińska-Czekaj
  • D. Czekaj
  • B. Garbarz-Glos
  • W. Bąk
  • T. Tadeyos Zate
  • J. Jeon

  - Applied Sciences-Basel - Rok 2023

  Compounds and solid solutions of bismuth ferrite (BiFeO3)—barium titanate (BaTiO3) system are of great scientific and engineering interest as multiferroic and potential high-temperature lead-free piezoelectric materials. In the present paper, the results of research on the synthesis and characterisation of 0.67Bi1.02FeO3–0.33BaTiO3 (67BFBT) ceramics in terms of crystal structure and dielectric and piezoelectric properties are reported....

  Pełny tekst do pobrania w portalu

• Zirconia ceramics with additions of Alumina for advanced tribological and biomedical applications

  Publikacja

  • M. H. Ghaemi
  • S. Reichert
  • A. Krupa
  • M. Sawczak
  • A. Zykova
  • K. Lobach
  • S. Sayenko
  • Y. Svitlychnyi

  - CERAMICS INTERNATIONAL - Rok 2017

  The results of an investigation on slip cast and sintered Y2O3 (3 wt%)- stabilized ZrO2 with additions of 5, 10, 15 wt% Al2O3 are reported. The surface roughness, porosity and density of the samples were measured. The hardness HRc and Hv, fracture toughness K1C, and friction coefficients were also measured using standard methods. The structural properties of the samples were observed by Scanning Electron Microscopy (SEM). The surface...

  Pełny tekst do pobrania w portalu

• Influence of processing conditions on crystal structure of BiNbO 4 ceramics

  Publikacja

  • A. Lisińska-Czekaj
  • D. Czekaj
  • J. Plewa

  - Ciencia & Tecnologia dos Materiais - Rok 2017

  Bismuth niobate (BiNbO4) has attracted attention as a low-fired ceramics with promising microwave application potential. It belongs to the bismutocolumbite oxides with similarly to scheelite-like stibiotantalite structure (SbTaO4) A3+B5+O4. Aim of the present research was to fabricate BiNbO4 ceramics by solid state reaction route from the mixture of simple oxides viz. Bi2O3, and Nb2O5, and study its phase composition as well as...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Sb measurements in a Bi-Sb-Te ceramics materials

  Dane Badawcze

  open access

  • M. Łapiński

  The influence of the temperature of the annealing of ceramic materials with the composition Bi0.5Sb1.5Te3O9 was investigated. The materials were annealed at the temperature of 440 degrees Celsius and 450 degrees Celsius. There were no significant differences in the valence of antimony and other elements.

• Manufacturing technology of porous ceramic structure

  Publikacja

  • P. Gdaniec

  - Rok 2011

  W pracy przedstawiono wybrane metody otrzymywania porowatych struktur ceramicznych w oparciu o istniejące dane literaturowe.

• Deposition and growth of thin ceramic films

  Publikacja

  • A. Chrzan
  • D. Grudzień
  • J. Karczewski

  - Rok 2015

  : Thin ceramic films play an important role in modern technology. One of the more utilized methods of deposition of ceramic films is spin coating. In this paper we investigate optimal deposition parameters for LaNi0.6Fe0.4O3−δ thin layers spin coated from a polymeric precursor. The quality of the obtained layers is checked using scanning electron microscopy. Additionally, we investigate the growth of grains in ceramic films annealed at...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Balanand Santhosh Ph.D.

  Osoby

  Katedra Konwersji i Magazynowania Energii

  Dr. Balanand Santhosh, obtained his Ph.D. (cum laude) in Materials, Mechatronics and Systems engineering from the Department of Industrial Engineering, University of Trento, Italy. He is currently working as Research Assistant Professor at Gdansk Univerity of Technology, Poland. Formerly he was working as a post-doctoral researcher at University of Trento, Italy. His research expertise is mainly in the area of ceramic processing...

• BIO-MEDICAL MATERIALS AND ENGINEERING

  Czasopisma

  ISSN: 0959-2989 , eISSN: 1878-3619

• Journal of Micro-Bio Robotics

  Czasopisma

  ISSN: 2194-6418 , eISSN: 2194-6426

• Bio-based and Applied Economics

  Czasopisma

  ISSN: 2280-6180 , eISSN: 2280-6172

• Chem-Bio Informatics Journal

  Czasopisma

  ISSN: 1347-6297 , eISSN: 1347-0442

• Pharmeuropa bio & scientific notes

  Czasopisma

  ISSN: 2075-2164

• Annals of Agri Bio Research

  Czasopisma

  ISSN: 0971-9660

• Sensing and Bio-Sensing Research

  Czasopisma

  eISSN: 2214-1804