| 释义 |
Widmanstätten|ˈvɪt-, ˈwɪdmənʃteɪtən, -st-|
Also -staetten, -statten.
The name of A. J. Widmanstätten (1754–1849), Austrian scientist, used attrib. with reference to an orderly pattern of intersecting bands seen in some meteorites and steels when a polished section is etched, attributed to the crystallization or precipitation of a new solid phase along the crystal planes of a parent solid phase.
1861Q. Jrnl. Geol. Soc. XVII. ii. 9 The plane of the cutting shows strings of whitish colour indicative of crystalline structure (‘Widmannstetten's figures’). 1881L. Fletcher Guide Meteorites Brit. Museum 16 The want of homogeneity in meteoric iron is beautifully shown by the ‘Widmanstätten’ figures. 1927Jrnl. Iron & Steel Inst. CXVI. 584 He points out the difference between the needle-like structure of the ferrite and the Widmanstätten structure. 1971I. G. Gass et al. Understanding Earth viii. 116/2 Those irons..usually show the Widmanstaetten structure.
Hence † Widmanˈstättian a.
1842Amer. Jrnl. Sci. XLIII. 359 The powder arranged itself in directions coinciding with the Widmanstättian figures. 1883Phil. Trans. R. Soc. CLXXIII. 889 It is the constituent of nickel-iron which forms the fine lines constituting the Wiedmannstättian figures, and not schreibersite, as usually stated in writings on the etched figures of meteoric iron. 1886[see Neumann]. |