Solubility and Dissolution Mechanism of Nitrogen and Carbon in Oxide Melts

氮和碳在氧化物熔体中的溶解度及溶解机理

• 批准号: 11555194
• 负责人: NAKASHIMA Kunihiko
• 金额: $ 7.42万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555194/
• 关键词: Al_2O_3-Y_2O_3-SiO_2 melts; Y-Al-Si-O-N glass melts; nitrogen solubility; viscosity; oxynitride glass; Vicker's hardness; ビッカース硬度; 窒素; 溶解度

The viscosity and the solubility of nitrogen using silicon nitride (Si_3N_4) as a source of nitrogen for Al_2O_3-Y_2O_3-SiO_2 melts have been systematically examined. The effects of nitrogen content on viscosity for Y-Al-Si-O-N melts have been also examined. Microhardness of oxide and oxynitride glasses in these systems have been measured.The viscosities of Al_2O_3-Y_2O_3-SiO_2 melts decreased, and the solubility of nitrogen into the oxide melts increased with increasing Y_2O_3 content. These results could be explained that yttrium ion is a network modifier and the amount of non-bridgeing oxygen increases in the melts.The viscosities of Y-Al-Si-O-N glass melts and Vicker's hardnes of oxynitride glasses remarkably increased with increasing nitrogen content. These results implied that the trivalent nitrogen substitutes for bivalent oxygen to produce a more tightly linked network and most of the nitrogen is linked to three silocons.

本文系统地研究了以氮化硅（Si_3N_4）为氮源的Al_2O_3-Y_2O_3-SiO_2熔体的粘度和氮的溶解度。研究了氮含量对Y-Al-Si-O-N熔体粘度的影响。随着Y_2O_3含量的增加，Al_2O_3-Y_2O_3-SiO_2玻璃熔体的粘度降低，氮在氧化物熔体中的溶解度增加。结果表明，随着氮含量的增加，Y-Al-Si-O-N玻璃熔体的粘度和氧氮化物玻璃的维氏硬度均显著增加。这些结果表明，三价氮取代二价氧，以产生更紧密的连接网络和大部分的氮连接到三个硅。

项目成果

K.Kai,S.Furusho,K.Nakashima and K.Mori: "Y-Al-Si-O-N Glass Melts : Viscosity and Solubility of Nitorgen"Proc.16th Intemational Japan-Korea Seminar on Ceramics. 173-176 (1999)

K.Kai、S.Furush、K.Nakashima 和 K.Mori：“Y-Al-Si-O-N 玻璃熔体：氮的粘度和溶解度”Proc.16th 日本-韩国国际陶瓷研讨会。