SOUND EMISSION DURING CRYSTALLIZATION OF UNDERCOOLED LIQUID GERMANIUM

被引：25

作者：

LAU, CF

KUI, HW

机构：

[1] Department of Physics, Chinese University of Hong Kong, Shatin, N. T.

来源：

JOURNAL OF APPLIED PHYSICS | 1990年 / 67卷 / 06期

关键词：

D O I：

10.1063/1.345399

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Liquid Ge which had been fluxed in dehydrated B2O3 was allowed to cool below Tm in a well controlled environment. The cooling rate was 6°C/min. It always crystallized to the diamond cubic phase and the resulting grain size decreased with increasing undercooling. A maximum undercooling of 342°C was recorded. It was found that sound was emitted during crystallization whenever the undercooling was ≳258°C for a ∼7-mm-diam specimen. It was also determined that cracks were the source of the sound.

引用

页码：3181 / 3184

页数：4

共 7 条

[1]

BAGLEY BG, 1978, LASER SOLID INTERACT, P97

[2] MICROSTRUCTURES OF UNDERCOOLED GERMANIUM DROPLETS [J].

DEVAUD, G ;

TURNBULL, D .

ACTA METALLURGICA, 1987, 35 (03) :765-769

[3]

FROST BRT, 1954, PROGR METAL PHYSICS, V5, P98

[4] FORMATION OF BULK METALLIC-GLASS BY FLUXING [J].

KUI, HW ;

GREER, AL ;

TURNBULL, D .

APPLIED PHYSICS LETTERS, 1984, 45 (06) :615-616

[5]

SPAEPEN F, 1978, LASER SOLID INTERACT, P73

[6]

TURNBULL D, COMMUNICATION

[7]

WALKER JL, 1964, PRINCIPLES SOLIDIFIC, P125

← 1 →