无机材料学报

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低熔点可切削微晶玻璃的组织与性能

马新沛; 李光新; 沈莲   

  1. 西安交通大学材料科学与工程学院, 西安 710049
  • 收稿日期:1999-05-17 修回日期:1999-06-24 出版日期:2000-04-20 网络出版日期:2000-04-20

Microstructure and Properties of a Machinable Glass Ceramic with Low Melting Temperature

MA Xin-Pei; LI Guang-Xin; SHEN Lian   

  1. Department of Material Science and Engineering; Xi an Jiaotong University; Xi an 710049; China
  • Received:1999-05-17 Revised:1999-06-24 Published:2000-04-20 Online:2000-04-20

摘要: 不同的晶化温度和保温时间对低熔点可切削微晶玻璃的微观组织形貌、切削性能和力学性能有明显影响.试验表明,600℃保温6~8h与650℃保温1~2h的晶化效果等同,具有最佳的切削性能和较高的抗弯强度.更高温度晶化可使强度进一步提高,但切削性能急剧下降.

关键词: 低熔点, 可切削微晶玻璃, 晶化, 可切削性, 强度

Abstract: A new machinable glass ceramic with low melting temperature was prepared and its microstructure, machinability and mechanical properties varied significantly with the variation of crystallization temperature and time. The test results show that optimum machinability and higher bending strength can be obtained when the glass ceramic is heated at 600℃ for 6-8h or at 650℃ for 1~2h, and its bending strength can be further increased with rising crystallization temperature, but its machinability will be decreased rrapidly.

Key words: low melting temperature, machinable glass ceramic, crystallization, machinability, strength

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