전자부품용 메탈라이즈드 알루미나 세라믹스의 미세구조 제어

조범래; Bum-Rae Cho

Korean Journal of Materials Research, Vol.11, No.12, 1086-1090, December, 2001

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전자부품용 메탈라이즈드 알루미나 세라믹스의 미세구조 제어

Microsturcture Control of Metallized Alumina Ceramics for Electronic Devices

조범래 ^†

계명대학교 공학부 재료공학전공

Bum-Rae Cho^†

Department of Materials Engineering, Keimyung University, Daegu, 704-701, Korea

E-mail:

Composition effects on microstructure and metallizing properties of the alumina sintered body were evaluated to develop the metallized alumina tubes having superior properties for electronic devices. SEM observation revealed that resultant micrographs and fractographs were varied with composition chance of additives and SiO 2 -rich specimens showed better microstructural characteristics with uniform distribution of fine and round particles than other CaO-rich or MgO-rich ones. The resultant interfacial microstructure of the SiO 2 -rich metallized alumina tubes also showed good metallizing properties with no defects between layers and uniform thickness of metallizing layer.

Keywords:metallizing;alumina tube;gasless varistor;screen printing

[References]

Klomp JT, Am. Ceram. Soc. Bull., 51(9), 683 (1972)
Twentyman ME, Popper P, J. Matl. Sci., 10, 765 (1975)
Palmour H, J. Electrochemical Soc., 102(7), 160 (1955)
Frey RG, Halloran JW, J. Am. Ceram. Soc., 67(3), 199 (1984)
Klomp JT, Botden TPJ, Am. Ceram. Soc. Bull., 49(2), 204 (1970)
Reed JS, Runk RB, 'Ceramic Fabrication Processes', Academic Press, New York, 71 (1976) (1976)
Dimilia RA, Reed JS, Am. Ceram. Soc. Bull., 62(4), 484 (1983)
Zheng J, Reed JS, J. Am. Ceram. Soc., 71(11), 456 (1988)
Zheng J, Reed JS, Am. Ceram. Soc. Bull., 71(9), 1410 (1992)
Shin YD, Cho IC, 'Encyclopedia of Ceramics Microstructure by SEM', cheong Media, 3, 70 (2001) (2001)
Denton EP, Rawson H, Trans. Brit. Ceram. Soc., 59(2), 25 (1960)
Zheng J, Reed JS, J. Am. Ceram. Soc., 72(5), 810 (1989)

[Related Articles]

[1] Klomp JT, Am. Ceram. Soc. Bull., 51(9), 683 (1972)

[2] Twentyman ME, Popper P, J. Matl. Sci., 10, 765 (1975)

[3] Palmour H, J. Electrochemical Soc., 102(7), 160 (1955)

[4] Frey RG, Halloran JW, J. Am. Ceram. Soc., 67(3), 199 (1984)

[5] Klomp JT, Botden TPJ, Am. Ceram. Soc. Bull., 49(2), 204 (1970)

[6] Reed JS, Runk RB, 'Ceramic Fabrication Processes', Academic Press, New York, 71 (1976) (1976)

[7] Dimilia RA, Reed JS, Am. Ceram. Soc. Bull., 62(4), 484 (1983)

[8] Zheng J, Reed JS, J. Am. Ceram. Soc., 71(11), 456 (1988)

[9] Zheng J, Reed JS, Am. Ceram. Soc. Bull., 71(9), 1410 (1992)

[10] Shin YD, Cho IC, 'Encyclopedia of Ceramics Microstructure by SEM', cheong Media, 3, 70 (2001) (2001)

[11] Denton EP, Rawson H, Trans. Brit. Ceram. Soc., 59(2), 25 (1960)

[12] Zheng J, Reed JS, J. Am. Ceram. Soc., 72(5), 810 (1989)