可切削渗透陶瓷(MIC)渗透玻璃的研究

讨论可切削渗透陶瓷（ＭＩＣ）渗透玻璃的制备技术及性能表征。采用氧化铝坩埚于１４５０℃熔融成玻璃，筛选玻璃生成范围，采用热分析仪测定玻璃的热学性能，对晶化后的微晶玻璃采用Ｘ射线衍射分析进行物相鉴别，用三点弯曲法测定力学性能。确立了母体玻璃的化学组成，对传统氟金云母玻璃进行了改进，增加了Ｂ２Ｏ３的用量，并添加了Ｌａ２Ｏ３及Ｌｉ２Ｏ３，生成了具有较低熔点的玻璃，晶化后析出氟金云母晶相，氟金云母玻璃可按性

Investigation of Infiltration Glass of the Machinable Infiltrated Ceramic(MIC)

To explore the manufacture arts and determine the properties of the infiltration glass of the MIC. In order to determine the glass forming range of the MIC infiltration glass, molten glass was prepared in Al2O3 crucibles by heating the components to 1450 degrees C. Thermal analytic device was employed to study the thermal properties of the glass. Its crystal phases after micro-crystallization were analyzed with XRD. Flexural strength was measured by means of 3-point bending test. The chemical components of MIC glass were determined. Conventional fluorophlogopite glass was converted into an infiltration glass with low viscosity, good infiltration capability and low fusing temperature by introducing B2O3, La2O3 and Li2O into the glass. Fluorophlogopite crystals formed after crystallization. Conventional mica glass can be changed according to the requirements of properties. Modified mica MIC glass in this study has good infiltration ability in Al2O3 matrix while remains machinability.