Inhibition of grain growth by MgO in laser-melted Al2O3 capillary microstructure
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- 作者：Takuya Honma ; takuya.honma@tlt.co.jp" class="auth_mail" title="E-mail the corresponding author ; Junichi Tatami
- 关键词：Ceramics ; Annealing ; Evaporation ; Microstructure ; Thermal expansion ; Thermal conductivity
- 刊名：Materials Chemistry & Physics
- 出版年：2016
- 出版时间：1 March 2016
- 年：2016
- 卷：171
- 期：Complete
- 页码：1-5
- 全文大小：2022 K
文摘
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We studied Nb-sealing of Al2O3 capillary using Nd:YAG laser irradiation.
We studied reduction of void formation inside Al2O3 melted by laser irradiation.
Void attributed to gases emitted from components of Al2O3.
Gases diffused on outer surface during annealing at cooling step.
Grain growth was suppressed by use of MgO as grain inhibitor.