K. Shanmugam
材料科学技术(英文)
The present study is concerned with the effect of filler metals such as austenitic stainless steel, ferritic stainless steel and duplex stainless steel on tensile and impact properties of the ferritic stainless steel conforming to AISI 409M grade. Rolled plates of 4 mm thickness were used as the bas...
关键词:
Ferritic stainless steel
Journal of Materials Research
The morphology of the dark and bright regions observed by transmission electron microscopy for the Zr(64.13)Cu(15.75)Ni(10.12)Al(10) bulk metallic glass strongly depends on the ion beam parameters used for ion milling. This indicates that the ion beam could introduce surface fluctuation to metallic ...
关键词:
room-temperature
荀玉强
,
杨鲁伟
,
蔡京辉
,
梁惊涛
,
周远
工程热物理学报
介绍了一套实用型单级高频同轴脉冲制冷机工作在深低温区的性能特性.输入功率为200 W时,冷头无负荷最低温度可达到29.35 K,输入功率为235 W时,冷头无负荷温度可稳定在28.55 K....
关键词:
脉冲管制冷机
,
高频
,
单级
,
同轴
,
双向
Ying LI
材料科学技术(英文)
Oxide materials NaCo2O4 and (Na1-yMy)1.6Co2O4 (M=K, 0.05≤y≤0.35; M=Ca, Sr, 0.10≤y≤0.40) were prepared by a sol-gel method. Experimental results indicated that the Seebeck coefficient and the Power-factor of Na Co2O4 were improved by doping Ca and Sr but not by
关键词:
Thermoelectric materials
,
materials
,
Electric
,
proper