He Yizhen

He Yizhen (Chinese: 何怡贞; pinyin: Hé Yízhēn; 1910–2008) was a Chinese physicist. She contributed to applying spectroscopy to the steel industry in China and to the research in amorphous state physics. Her research specialty in amorphous physics was metallic glass. She filled up the blank of spectroscopy research in China, and became the first person to measure the whole internal friction peak of metallic glass. He Yizhen was one of the founders of the Institute of Solid State Physics of the Chinese Academy of Sciences in Hefei. The research emphases of the institute are nuclear engineering, special metallic materials, and internal friction of solid.