Nano Al2O3-Pb and SiO2-Pb cermets by sol-gel technique and the phase transformation study of the embedded Pb particles

被引：10

作者：

Bhattacharya, P ^{[1
]}

Chattopadhyay, K ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Met, Bangalore 560012, Karnataka, India

来源：

NANOSTRUCTURED MATERIALS | 1999年 / 12卷 / 5-8期

关键词：

D O I：

10.1016/S0965-9773(99)00302-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sol-gel processing followed by H-2 reduction is used to produce dispersions of nanosized Pb in amorphous SiO2 and ultrafine gamma Al2O3 matrices. A depression of 3-5 K in Pb melting point is reported. The size and shape of these metastable particles in molten and solid state are discussed in the light of the experimental observations and expectations from the intersection group theory for equilibrium shape. (C) 1999 Acta Metallurgica Inc.

引用

页码：1077 / 1080

页数：4

共 7 条

[1] Nucleation behaviour of nanodispersed Pb in SiO2 matrix produced by sol-gel route [J].

Bhattacharya, P ;

Chattopadhyay, K .

MATERIALS TRANSACTIONS JIM, 1998, 39 (01) :75-79

[2]

BHATTACHARYA P, 1997, P INT C REC ADV MET, V2, P817

[3]

CHAN JW, 1981, P INT C SOL SOL PHAS, P3

[4]

CHATTOPADHYAY K, UNPUB J ELECT MICROS

[5]

GLEITER H, 1989, PROG MATER SCI, V33, P233

[6] INSITU TRANSMISSION ELECTRON-MICROSCOPE MEASUREMENTS OF SOLID AL-SOLID PB AND SOLID AL-LIQUID PB SURFACE-ENERGY ANISOTROPY IN RAPIDLY SOLIDIFIED AL-5-PERCENT-PB (BY MASS) [J].

MOORE, KI ;

CHATTOPADHYAY, K ;

CANTOR, B .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1987, 414 (1847) :499-&

[7] PHONONS AND FRACTONS IN SOL-GEL ALUMINA - RAMAN-STUDY [J].

ROY, A ;

SOOD, AK .

PRAMANA-JOURNAL OF PHYSICS, 1995, 44 (03) :201-209

← 1 →