为满足燃机产品的使用要求,很多结构的连接处出现了X6Cr Ni Ti18-10和X6Cr13异种钢焊接接头。针对这两种异种钢材料的焊接工艺进行了试验研究,分析母材特性,选择合适的焊接方法以及焊接材料,并通过试验结果验证焊接工艺方案的可行性,用...为满足燃机产品的使用要求,很多结构的连接处出现了X6Cr Ni Ti18-10和X6Cr13异种钢焊接接头。针对这两种异种钢材料的焊接工艺进行了试验研究,分析母材特性,选择合适的焊接方法以及焊接材料,并通过试验结果验证焊接工艺方案的可行性,用于指导实际产品的焊接生产。展开更多
The effects of different x values on the dielectric properties in the Ba6-3xSm8+2xTi18O54 microwave dielectric ceramics(0.3≤x≤0.7) were studied. The results showed that the major crystal phase was BaSm2Ti4O12 and th...The effects of different x values on the dielectric properties in the Ba6-3xSm8+2xTi18O54 microwave dielectric ceramics(0.3≤x≤0.7) were studied. The results showed that the major crystal phase was BaSm2Ti4O12 and the sintering temperature of the ceramics was 1340 ℃ when the x value was 0.67. The dielectric properties were better: εr≈79, tanδ≈1×10-4(1 MHz); εr≈80, Q·f=9230 GHz(3.97 GHz), τf=-17 ppm·℃-1.展开更多
文摘The effects of different x values on the dielectric properties in the Ba6-3xSm8+2xTi18O54 microwave dielectric ceramics(0.3≤x≤0.7) were studied. The results showed that the major crystal phase was BaSm2Ti4O12 and the sintering temperature of the ceramics was 1340 ℃ when the x value was 0.67. The dielectric properties were better: εr≈79, tanδ≈1×10-4(1 MHz); εr≈80, Q·f=9230 GHz(3.97 GHz), τf=-17 ppm·℃-1.
