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本文旨在探讨钼丝与硬质玻璃密封 (匹配封接 )和钼箔 (MoESS ribbon)与石英玻璃密封 (韧性金属封接 )的要求。通过比较分析钼中添加不同氧化物 ,经过粉粒精炼的变形和热处理过程 ,从而阐明了ODS -Mo(氧化物弥散增强钼 )中氧化物离子结合特性比与其再结晶温度之间的相互关系。对于硬质玻璃密封 ,其颗粒倍增系数应尽可能大 ,以便其在夹封后达到延展性要求。对于石英玻璃密封则要求ESS带 (钼箔 )介于 12 50℃的再结晶温度范围。其再结晶温度越高 ,则石英玻璃应力就越大 (石英更容易破裂 ) ,其再结晶温度越低 ,则会因ESS带破裂而减低产量。ESS钼带与石英玻璃的牢固粘合是实现长期真空密封的前提条件 ,但这要取决于ESS带的力学结合、化学结合、可湿度及其表面纯度等因素。MY(Mo— 0 4 7wt%、Y2 O3— 0 0 8wt%、Ce2 O3)内的Y2 O3 Ce2 O3粉粒四周都有腐蚀形成的沟槽 ,从而产生一种“拉链效应”(改善了的力学结合 ) ,减小润湿度 (纯钼 :97 2± 6 5° ;MY :79 7± 8 5° ;温度 =2 0 0 0℃ ,氩气 )并生成Y2 Si2 O7。使用MY合金 (即不用纯ESS钼带 )亦可使卤钨灯在 4 30～ 540℃基准温度下使用寿命提高 1～ 2倍
This article aims to investigate the requirements of MoSi ribbons and quartz glass seals (ductile metal seals) between molybdenum wires and hard glass seals. By comparing and analyzing the deformation and heat treatment process of adding different oxides in molybdenum and refining the powder, the relationship between the ratio of oxide ion binding in ODS-Mo (oxide diffusion-enhanced molybdenum) and its recrystallization temperature is clarified. For hard glass seals, the particle multiplication factor should be as large as possible so that it meets the ductility requirements after pinch-off. For quartz glass seals, the ESS tape (molybdenum foil) is required to be in the recrystallization temperature range of 1250 ° C. The higher the recrystallization temperature, the greater the stress of quartz glass (quartz is more likely to rupture). The lower the recrystallization temperature, the lower the yield will be due to rupture of the ESS tape. The strong bonding of ESS molybdenum strips to quartz glass is a prerequisite for long-term vacuum sealing, but it depends on the mechanics of the ESS tape, chemical bonding, wettability and its surface purity. The grooves formed on the Y2O3 Ce2O3 particles in the MY (Mo-0 4 7wt%, Y2O3- 0 0 8wt%, Ce2O3) corrode all around to create a “zipper effect” (improved mechanics (Pure molybdenum: 97 2 ± 65 °; MY 79 7 ± 85 °; temperature = 200 ° C, argon) and form Y2 Si2 O7. The use of MY alloy (that is, without pure ESS molybdenum ribbon) can also make the tungsten halogen lamp 4 ~ 540 ℃ in the reference temperature of life increased by 1 to 2 times