2 research outputs found
Glass Formation in the Bi2O3 β B2O3. Thermal Stability and Glass Structure
Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΡΡΠ΅ΠΊΠΎΠ»
Π½Π° ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Ρ ΡΡΠ΅ΠΊΠ»ΠΎΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π² Π±ΠΈΠ½Π°ΡΠ½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠ΅ ΠΎΠΊΡΠΈΠ΄ Π²ΠΈΡΠΌΡΡΠ°
(III) β ΠΎΠΊΡΠΈΠ΄ Π±ΠΎΡΠ°. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠΏΠΎΡΠΎΠ±Π° Π·Π°ΠΊΠ°Π»ΠΊΠΈ ΡΠ°ΡΠΏΠ»Π°Π²Π° ΠΈ ΡΠ²ΡΠ·Π°Π½Π½ΠΎΠ΅ Ρ Π½ΠΈΠΌ
ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ ΠΏΡΠΈΠ²ΠΎΠ΄ΡΡ ΠΊ ΡΠ°ΡΡΠΈΡΠ΅Π½ΠΈΡ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π°
ΡΡΠ΅ΠΊΠ»ΠΎΠ²Π°Π½ΠΈΡ: ΠΏΡΠΈ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΠΈ ΡΠ°ΡΠΏΠ»Π°Π²Π° Π² ΡΠΈΠ³Π»Π΅ ΡΡΠ΅ΠΊΠ»Π° ΠΎΠ±ΡΠ°Π·ΡΡΡΡΡ Π² ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ
35β45 ΠΌΠΎΠ».% Bi2O3, Π·Π°ΠΊΠ°Π»ΠΊΠ° Π½Π° ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½Π΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΠΎΠ»ΡΡΠ°ΡΡ ΡΡΠ΅ΠΊΠ»Π° Π²
ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ 30β55 ΠΌΠΎΠ».% Bi2O3, Π° ΡΠ΄Π°Π²Π»ΠΈΠ²Π°Π½ΠΈΠ΅ ΡΠ°ΡΠΏΠ»Π°Π²Π° ΠΌΠ΅ΠΆΠ΄Ρ Π΄Π²ΡΠΌΡ Ρ
ΠΎΠ»ΠΎΠ΄Π½ΡΠΌΠΈ ΠΌΠ΅Π΄Π½ΡΠΌΠΈ
ΠΏΠ»Π°ΡΡΠΈΠ½Π°ΠΌΠΈ β Π² ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ 30β70 ΠΌΠΎΠ».% Bi2O3. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ
ΠΌΠΎΠ»ΡΠ½ΡΡ
ΠΎΠ±ΡΠ΅ΠΌΠΎΠ² ΡΡΠ΅ΠΊΠΎΠ» ΠΈ ΠΏΠ°ΡΡΠΈΠ°Π»ΡΠ½ΡΡ
ΠΌΠΎΠ»ΡΠ½ΡΡ
ΠΎΠ±ΡΠ΅ΠΌΠΎΠ² ΠΎΠΊΡΠΈΠ΄ΠΎΠ² Π²ΠΈΡΠΌΡΡΠ° ΠΈ Π±ΠΎΡΠ°, ΠΊΠΎΡΠΎΡΡΠ΅
ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎ Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ ΠΠ-Π€ΡΡΡΠ΅ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΡΠΊΠ°Π·ΡΠ²Π°ΡΡ Π½Π° ΠΏΠΎΡΡΠ΅ΠΏΠ΅Π½Π½ΠΎΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅
Π² ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ 40β50 ΠΌΠΎΠ».% Bi2O3 ΠΊΠΎΠΎΡΠ΄ΠΈΠ½Π°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΠΈΡΠ»Π° Π±ΠΎΡΠ° Π² ΡΡΠ΅ΠΊΠ»Π΅ Ρ 4 Π΄ΠΎ 3. Π Π°ΡΡΡΠΈΡΠ°Π½Π½ΡΠ΅
ΠΏΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌ Π½Π΅ΠΈΠ·ΠΎΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ ΡΡΠ΅ΠΊΠ»Π° ΠΊΠ°ΠΆΡΡΠΈΠ΅ΡΡ ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ
ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΏΠΎΠ½ΠΈΠΆΠ°ΡΡΡΡ Ρ ΡΠΎΡΡΠΎΠΌ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΈ ΠΏΡΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠΈ
ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΠΎΠΊΡΠΈΠ΄Π° Π±ΠΎΡΠ°There are data dedicated to the features of synthesis of glasses in the system of bismuth borates
introduced in the paper. It was shown that an increase of melt cooling rate leads to widening of glassforming
region: at a cooling of melt in crucible glasses forms in concentration area 35β45 mol.%
Bi2O3, quenching on the metal plate yield glasses at 30β55 mol.% Bi2O3 area, and squeezing of melt
between cold copper plates yield glasses at 30β70 mol.% Bi2O3 area. Concentration dependences of
molar volumes of glasses were measured and partial molar volumes of bismuth and boron oxides
were calculated. In agreement with FTIR spectroscopic data confirmed decrees or boron coordination
number from 4 to 3 with increase of containing of bismuth, conversion occurs gradually at concentration
40β50 ΠΌΠΎΠ».% Bi2O3. In non-isothermal routine the apparent activation energy of glass crystallization
was evaluated, it was shown that with addition of boron oxide that value decreases and crystallization
temperature increase
Glass Formation in the Bi2O3 β B2O3. Thermal Stability and Glass Structure
Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΡΡΠ΅ΠΊΠΎΠ»
Π½Π° ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Ρ ΡΡΠ΅ΠΊΠ»ΠΎΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π² Π±ΠΈΠ½Π°ΡΠ½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠ΅ ΠΎΠΊΡΠΈΠ΄ Π²ΠΈΡΠΌΡΡΠ°
(III) β ΠΎΠΊΡΠΈΠ΄ Π±ΠΎΡΠ°. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠΏΠΎΡΠΎΠ±Π° Π·Π°ΠΊΠ°Π»ΠΊΠΈ ΡΠ°ΡΠΏΠ»Π°Π²Π° ΠΈ ΡΠ²ΡΠ·Π°Π½Π½ΠΎΠ΅ Ρ Π½ΠΈΠΌ
ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ ΠΏΡΠΈΠ²ΠΎΠ΄ΡΡ ΠΊ ΡΠ°ΡΡΠΈΡΠ΅Π½ΠΈΡ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π°
ΡΡΠ΅ΠΊΠ»ΠΎΠ²Π°Π½ΠΈΡ: ΠΏΡΠΈ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΠΈ ΡΠ°ΡΠΏΠ»Π°Π²Π° Π² ΡΠΈΠ³Π»Π΅ ΡΡΠ΅ΠΊΠ»Π° ΠΎΠ±ΡΠ°Π·ΡΡΡΡΡ Π² ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ
35β45 ΠΌΠΎΠ».% Bi2O3, Π·Π°ΠΊΠ°Π»ΠΊΠ° Π½Π° ΠΌΠ΅ΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΠ½Π΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΠΎΠ»ΡΡΠ°ΡΡ ΡΡΠ΅ΠΊΠ»Π° Π²
ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ 30β55 ΠΌΠΎΠ».% Bi2O3, Π° ΡΠ΄Π°Π²Π»ΠΈΠ²Π°Π½ΠΈΠ΅ ΡΠ°ΡΠΏΠ»Π°Π²Π° ΠΌΠ΅ΠΆΠ΄Ρ Π΄Π²ΡΠΌΡ Ρ
ΠΎΠ»ΠΎΠ΄Π½ΡΠΌΠΈ ΠΌΠ΅Π΄Π½ΡΠΌΠΈ
ΠΏΠ»Π°ΡΡΠΈΠ½Π°ΠΌΠΈ β Π² ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ 30β70 ΠΌΠΎΠ».% Bi2O3. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ
ΠΌΠΎΠ»ΡΠ½ΡΡ
ΠΎΠ±ΡΠ΅ΠΌΠΎΠ² ΡΡΠ΅ΠΊΠΎΠ» ΠΈ ΠΏΠ°ΡΡΠΈΠ°Π»ΡΠ½ΡΡ
ΠΌΠΎΠ»ΡΠ½ΡΡ
ΠΎΠ±ΡΠ΅ΠΌΠΎΠ² ΠΎΠΊΡΠΈΠ΄ΠΎΠ² Π²ΠΈΡΠΌΡΡΠ° ΠΈ Π±ΠΎΡΠ°, ΠΊΠΎΡΠΎΡΡΠ΅
ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎ Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ ΠΠ-Π€ΡΡΡΠ΅ ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΡΠΊΠ°Π·ΡΠ²Π°ΡΡ Π½Π° ΠΏΠΎΡΡΠ΅ΠΏΠ΅Π½Π½ΠΎΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅
Π² ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ 40β50 ΠΌΠΎΠ».% Bi2O3 ΠΊΠΎΠΎΡΠ΄ΠΈΠ½Π°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΡΠΈΡΠ»Π° Π±ΠΎΡΠ° Π² ΡΡΠ΅ΠΊΠ»Π΅ Ρ 4 Π΄ΠΎ 3. Π Π°ΡΡΡΠΈΡΠ°Π½Π½ΡΠ΅
ΠΏΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌ Π½Π΅ΠΈΠ·ΠΎΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ ΡΡΠ΅ΠΊΠ»Π° ΠΊΠ°ΠΆΡΡΠΈΠ΅ΡΡ ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ
ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΏΠΎΠ½ΠΈΠΆΠ°ΡΡΡΡ Ρ ΡΠΎΡΡΠΎΠΌ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΈ ΠΏΡΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠΈ
ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΠΎΠΊΡΠΈΠ΄Π° Π±ΠΎΡΠ°There are data dedicated to the features of synthesis of glasses in the system of bismuth borates
introduced in the paper. It was shown that an increase of melt cooling rate leads to widening of glassforming
region: at a cooling of melt in crucible glasses forms in concentration area 35β45 mol.%
Bi2O3, quenching on the metal plate yield glasses at 30β55 mol.% Bi2O3 area, and squeezing of melt
between cold copper plates yield glasses at 30β70 mol.% Bi2O3 area. Concentration dependences of
molar volumes of glasses were measured and partial molar volumes of bismuth and boron oxides
were calculated. In agreement with FTIR spectroscopic data confirmed decrees or boron coordination
number from 4 to 3 with increase of containing of bismuth, conversion occurs gradually at concentration
40β50 ΠΌΠΎΠ».% Bi2O3. In non-isothermal routine the apparent activation energy of glass crystallization
was evaluated, it was shown that with addition of boron oxide that value decreases and crystallization
temperature increase