云母微晶玻璃是一种新型的无机非金属材料,由于它的结构特征,使它具有优良的真空物理性能,并具有类似金属材料的机械加工性能,在真空科学与技术领域中具有宽广的应用前景。一、引言新材料的研制促进了真空科学技术的发展,真空科学技术的发展又必然要求具有新功能的材料。二十多年来出现的新材料证明了这一点。人们也从中认识到,使用单种物质,易受材料性能的限制;如把数种物质结合在一起,就能取长补短,研制成多种新型的材料。以往的技术陶瓷和玻璃具有较好的机械、电气、热学和化学性能,近年来在真空、电子 Mica glass is a new type of inorganic non-metallic materials, because of its structural characteristics, it has excellent vacuum physical properties, and has the similar mechanical properties of metal materials in the field of vacuum science and technology has a wide range of applications prospect. I. INTRODUCTION The development of new materials has promoted the development of vacuum science and technology. The development of vacuum science and technology necessarily requires materials with new functions. This is evidenced by the new materials that have emerged over more than two decades. People also realized that the use of a single substance, susceptible to the limitations of material properties; such as the combination of several substances, can learn from each other, developed into a variety of new materials. Past technology ceramics and glass have good mechanical, electrical, thermal and chemical properties, in recent years in vacuum, electronic