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The topography of as-quenched and heat treated 50(2Bi2O3-V2O5)-50SrB4O7 and 50Bi2VO5.5-50SrB4O7 glasses measured with AFM
Opis
The topography of as-quenched and heat treated 50(2Bi2O3-V2O5)-50SrB4O7 and 50Bi2VO5.5-50SrB4O7 glasses measured with AFM.
Two samples of compositions: 50(2Bi2O3-V2O5)-50SrB4O7 (1st method) and 50Bi2VO5.5-50SrB4O7 (2nd method) were prepared from appropriate amounts of Bi2O3, V2O5 and preprepared polycrystalline strontium–borate and bismuth vanadate. SrB4O7 was synthesized via a solid state reaction route that involved heating stoichiometric mixtures of analytical grade SrCO3 and H3BO3 at 1073 K for 12 hours. The Bi2VO5.5 was synthesized from the stoichiometric mixture of initial powders of Bi2O3 and V2O5 which were ball-milled in pure acetone for 6 h at room temperature. The milling was performed in steps of 1 h with rest intervals of 10min. The mixture was heated up to 1020K in air and kept at this temperature for 24 h. The heating and cooling rate was of 50K h-1.
Samples of glass were prepared by the conventional melt quenching technique. The melting was conducted in alumina crucibles at 1373 K for 2 hours. The melt was poured onto a preheated (573 K) brass plate and pressed by another plate to obtain flat circular disks of 1–2 mm thickness and 20–30 mm in diameter.
Two types of samples were studied: as-quenched and heat-treated. Sample prepared by 1st method was partially crystallized by heat treating in air at a temperature of 693 K for 3 hours and then kept the samples in the furnace to cool to room temperature. Full crystallization was conducted at 813 K for samples prepared by both methods.
The microstructure of all samples was determined by means of atomic force microscopy at their fresh fractures with the use of NT-MDT Ntegra AFM.
Plik z danymi badawczymi
hexmd5(md5(part1)+md5(part2)+...)-{parts_count} gdzie pojedyncza część pliku jest wielkości 512 MBPrzykładowy skrypt do wyliczenia:
https://github.com/antespi/s3md5
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CC BYUznanie autorstwa - Dane surowe:
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Informacje szczegółowe
- Rok publikacji:
- 2015
- Data zatwierdzenia:
- 2021-05-25
- Język danych badawczych:
- angielski
- Dyscypliny:
-
- inżynieria materiałowa (Dziedzina nauk inżynieryjno-technicznych)
- DOI:
- Identyfikator DOI 10.34808/cbgz-cj40 otwiera się w nowej karcie
- Weryfikacja:
- Politechnika Gdańska
Słowa kluczowe
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