中国科技论文在线

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2005年08月30日

【期刊论文】Preparation of Al2O3-AlON and Al2O3-AlN composites via reaction-bonding

蔡克峰， K. F. CAI*， D. S. MCLACHLAN

，-0001，（）：

-1年11月30日

摘要

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2005年08月30日

【期刊论文】Preparation and thermoelectric properties of Al-doped ZnO ceramics

蔡克峰， K. F. Cai a， b， *， E. Müller a， C. Drašar a， A. Mrotzek a

K. F. Cai et al./Materials Science and Engineering B104(2003)45-48，-0001，（）：

-1年11月30日

摘要

Al2O3 added ZnO powders were prepared via sol-gel processing, using zinc acetate, ammonia and Al2O3 powders as starting materials. Scanning electron microscopy (SEM) observations indicated that the Al2O3 added ZnO powders consisted of very fine particles (0.1-2m). The thermal conductivity, electrical conductivity and Seebeck coefficient of hot-pressed Al2O3 added ZnO ceramic samples were measured in dependence of temperature up to 600℃. The influence of Al2O3 addition on the thermoelectric (TE) properties of ZnO ceramics is discussed.

Zinc oxide， Semiconductor， Thermoelectric properties， Sol-gel

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2005年08月30日

【期刊论文】Microstructure of hot-pressed B4C-TiB2 thermoelectric composites

蔡克峰， K. F. Cai a.b.*， C. W. Nan c， M. Schmuecker a， E. Mueller a

K. F. Cai et al./Journal of Alloys and Compounds 350(2003)313-318，-0001，（）：

-1年11月30日

摘要

B4C-TiB2 thermoelectric composites were prepared via hot-pressing. The phase composition, microstructure of the samples were characterized by means of XRD, SEM and TEM. The composition of different phases, including grain boundary phase, was analyzed by means of EDS. The effects of the microstructure on the thermoelectric properties of the composites are discussed.

Composite materials， Semiconductors， Powder metallurgy， SEM， TEM

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2005年08月30日

【期刊论文】Effect of titanium carbide addition on the thermoelectric properties of B4C ceramics

蔡克峰， K.-f. Caia， c， *， C.-W. Nanb， Y. Padernod， D. S. McLachlanc

K. Cai et al./Solid State Communications 115(2000)523-526，-0001，（）：

-1年11月30日

摘要

TiB2/B4C composite ceramics are prepared via hot pressing, in which the TiB2 particles are formed by introducing TiC0.78 and through the reaction between B4C and TiC0.78. The electrical and thermal conductivities and Seebeck coefficient of samples containing 0, 12.5 and 25.4 vol% TiB2 are measured from room temperature up to 1200K. The results show that the transport properties of the samples vary with the TiB2 content. The transport properties of a 12.5 vol% TiB2/B4C sample are dominated by the B4C matrix as in undoped B4C ceramics, whilst the transport properties of a 25.4 vol% TiB2/B4C sample are dominated by TiB2 particles. The figure of merit of the 25.4 vol% TiB2/B4C sample is higher than that of the undoped B4C ceramic sample between room temperature and about 700K, which indicates that it is possible to improve the thermoelectric properties by selecting an optimum combination of different materials.

A.， Semiconductors， D.， Electronic transport

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2005年08月30日

【期刊论文】Effect of porosity on the thermal-electric properties of Al-doped SiC ceramics

蔡克峰， KE-FENG CAI， JIN-PING LIU， CE-WEN NAN， XIN-MIN MIN

，-0001，（）：

-1年11月30日

摘要

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