MICROSTRUCTURAL STUDIES OF ULTRAFINE IRON PARTICALES

Acta Metall Sin

1989, Vol. 25

Issue (5): 144-146 DOI:

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MICROSTRUCTURAL STUDIES OF ULTRAFINE IRON PARTICALES

WANG Shuhe;CAI Yuling;AN Gang;WEN Lishi;ZHUANG Yuzhi Institute of Metal Research; Academia Sinica; Shenyang WANG Shuhe; Irutitute of llletai Research; Academia Sinica;110015 Shengyang

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WANG Shuhe;CAI Yuling;AN Gang;WEN Lishi;ZHUANG Yuzhi Institute of Metal Research; Academia Sinica; Shenyang WANG Shuhe; Irutitute of llletai Research; Academia Sinica;110015 Shengyang. MICROSTRUCTURAL STUDIES OF ULTRAFINE IRON PARTICALES. Acta Metall Sin, 1989, 25(5): 144-146.

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Abstract The constitution, stricture and surface state of the ultrafine iron paricles pre-pared by gas evaporation technique have been investigated by means of X-ray analysis, high-resolution electron microscopy (HREM) and electron spectroscopy for chemical analysis (ESCA).The results showed that the fine paticles are spherical ones of～20nm in diameter with α-Fecores and covered by Fe_3O_4 fine crystalline layers of～4nm thickness.

Key words: ultrafine particle microstructure high-resolution lattice image

Received: 18 May 1989

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