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Microstructure Refinement In W-Y2o3 Alloy Fabricated By Wet Chemical Method With Surfactant Addition And Subsequent Spark Plasma Sintering, Zhi Dong, Nan Liu, Zongqing Ma, Chenxi Liu, Qianying Guo, Zeid Abdullah Alothman, Yusuke Yamauchi, Md. Shahriar Al Hossain, Yongchang Liu
Microstructure Refinement In W-Y2o3 Alloy Fabricated By Wet Chemical Method With Surfactant Addition And Subsequent Spark Plasma Sintering, Zhi Dong, Nan Liu, Zongqing Ma, Chenxi Liu, Qianying Guo, Zeid Abdullah Alothman, Yusuke Yamauchi, Md. Shahriar Al Hossain, Yongchang Liu
Australian Institute for Innovative Materials - Papers
With the aim of preparing high performance oxide-dispersion-strengthened tungsten based alloys by powder metallurgy, the W-Y 2 O 3 composite nanopowder precursor was fabricated by an improved wet chemical method with anion surfactant sodium dodecyl sulfate (SDS) addition. It is found that the employment of SDS can dramatically decrease W grain size (about 40 nm) and improve the size uniformity. What's more, SDS addition can also remarkably improve the uniform dispersion of Y 2 O 3 particles during the synthesis process. For the alloy whose powder precursor was fabricated by traditional wet chemical method without SDS addition, only a few …