Investigation of Soret effect in glass melts for producing extremely homogeneous glass
| Project/Area Number |
16H04215
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Inorganic industrial materials
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
Hirao Kazuyuki 京都大学, 工学研究科, 名誉教授 (90127126)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
西 正之 京都大学, 工学研究科, 講師 (50402962)
清水 雅弘 京都大学, 工学研究科, 助教 (60704757)
|
|---|
| Project Period (FY) |
2016-04-01 – 2019-03-31
|
| Project Status |
Completed (Fiscal Year 2018)
|
| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
|
|---|
| Keywords | ガラス / ガラス融液 / 酸化物融液 / 温度勾配 / ソレー効果 / 拡散 / 分離 / 高温物性 / 不均一性 / 融液 / 超均質ガラス / 物理化学 |
|---|
| Outline of Final Research Achievements |
A new model, called adjusted Kempers model, is proposed to quantitatively predict Soret coefficients in binary glass-forming oxide melts. We experimentally measured the Soret coefficient of binary glass-forming oxide melts.The new model can reproduce the experimental value. By using nonequilibrium molecular dynamics simulation and new model, we revealed that the partial molar enthalpy is the main factor to determine the migration direction of SiO2 component.
|
| Academic Significance and Societal Importance of the Research Achievements |
ソレー効果は温度勾配を駆動力とした物質の拡散現象であり、様々なガラス溶融プロセスにおいて融液組成の不均一を生じさせる因子であるため、その機構の解明は工業的に重要である。本研究成果は、温度勾配下における多成分ガラス融液の拡散挙動を予測・理解するための学術的な基礎であり、溶融炉内の組成分布のより精密な予測につながるため、工業的に意義がある。
|
Report
(4 results)
Research Products
(21 results)
-
-
-
-
[Journal Article] Molecular dynamics simulation of the Soret effect in a CaSiO3 glass melt2017
Author(s)
Masahiro Shimizu*, Hiroshi Kato, Masayuki Nishi, Daisuke Hanakawa, Kohji Nagashima, Heidy Visbal, Hiroki Itasaka, Masaaki Sakakura, Yasuhiko Shimotsuma, Kiyotaka Miura, and Kazuyuki Hirao
-
Journal Title
Journal of the Ceramic Society of Japan
Volume: 125
Pages: 180-184
NAID
Related Report
Peer Reviewed / Acknowledgement Compliant
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
