A . Mahmoodian And
نویسنده
چکیده
The mould Penicillium frequentans Westling is, as its name implies, of very common occurrence on all kinds of material. According to Raper & Thom (1949), the Monoverticillate section of the genus Penicillium includes a P. frequentans series of three species, namely the type species, P. sprnulosum Thom and a less common species, P. purpurrescens (Sopp) n.comb. Webmer's classical studies of citric acid production by fungi led him to give the generic name Citromyces to the moulds which produced this compound. However, these were later grouped in the genus Penicillium, mainly in the P. frequentans series (Raper & Thom, 1949). Hetherington & Raistrick (1931) isolated a yellow crystalline substance from several strains of this series, and named it citromycetin. The structure (I) was finally determined by Cavill, Robertson & Whalley (1950).
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In situ TiC–Fe–Al2O3–TiAl/Ti3Al composite coating processing using centrifugal assisted combustion synthesis
1359-8368/$ see front matter 2013 Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.compositesb.2013.12.016 ⇑ Corresponding author at: Centre of Advanced Manufacturing and Materials Processing (AMMP), Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia. Tel.: +60 (3)79675200; fax: +60 (3)79675330. E-mail addresses: [email protected] (R. ...
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