Experimental proof of major role of magnetic field losses in microwave heating of metal and metallic composites

被引：133

作者：

Cheng, JP ^{[1
]}

Roy, R ^{[1
]}

Agrawal, D ^{[1
]}

机构：

[1] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 2001年 / 20卷 / 17期

关键词：

D O I：

10.1023/A:1017900214477

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microwave heating behavior of various materials in different microwave fields was investigated. A 2.45 GHz, 1.2 kW microwave generator with power monitor was used as a microwave source. The temperature of the metal sample was measured using an infrared pyrometer. The oxidation of metal samples at high temperature was avoided by pasing nitrogen gas through the quartz tube. The tungsten carbide-cobalt (WC-Co) sample can be efficiently heated up in the magnetic field and alumina-powdered composite sample can be heated up both in electric and magnetic fields, but the heating effect was faster in the magnetic fiels.

引用

页码：1561 / 1563

页数：3

共 6 条

[1]

[Anonymous], ELECTROCERAMICS 4

[2] Microwave enhanced reaction kinetics in ceramics [J].

Booske, JH ;

Cooper, RF ;

Freeman, SA .

MATERIALS RESEARCH INNOVATIONS, 1997, 1 (02) :77-84

[3]

CLARK D, 1996, ANNU REV MATER SCI, V26, P229

[4] FREE-SPACE MEASUREMENT OF COMPLEX PERMITTIVITY AND COMPLEX PERMEABILITY OF MAGNETIC-MATERIALS AT MICROWAVE-FREQUENCIES [J].

GHODGAONKAR, DK ;

VARADAN, VV ;

VARADAN, VK .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1990, 39 (02) :387-394

[5] Full sintering of powdered-metal bodies in a microwave field [J].

Roy, R ;

Agarwal, D ;

Chen, JP ;

Gedevanishvili, S .

NATURE, 1999, 399 (6737) :668-670

[6]

SUTTON WH, 1989, AM CERAM SOC BULL, V68, P376

← 1 →