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New Silicon Findings from A. Amanov and Co-Researchers Described (The usability and preliminary effectiveness of ultrasonic nanocrystalline surface...

August 22, 2014



New Silicon Findings from A. Amanov and Co-Researchers Described (The usability and preliminary effectiveness of ultrasonic nanocrystalline surface modification technique on surface properties of silicon carbide)

By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Silicon. According to news originating from Asan, South Korea, by NewsRx correspondents, research stated, "This study reports the change in microstructural, mechanical and tribological characteristics of sintered silicon carbide (SiC) ceramic subjected to ultrasonic nanocrystalline surface modification (UNSM) technique. The surface microstructure of the untreated and UNSM-treated specimens was examined by SEM, EDS and XRD."

Our news journalists obtained a quote from the research, "The mechanical properties of the specimens were measured by nanoindentation. The tribological properties of the specimens were assessed using a ball-on-disk tribometer against a bearing steel (SAE52100) ball at two different temperatures under dry reciprocating conditions. It was confirmed by SEM that the UNSM-treated specimens had much denser microstructure than those of the untreated specimens. The EDS results revealed that the UNSM technique has no effect on the chemical composition of sintered SiC ceramic. The average surface roughness obtained by AFM was found to be about 83.6 nm and 60.1 nm for the untreated and UNSM-treated specimens, respectively. The tribological results showed that the UNSM-treated specimens exhibited a lower friction coefficient and higher wear resistance compared to those of the untreated specimens. In addition, it was found that the UNSM technique was able to decrease the quantity of pores."

According to the news editors, the research concluded: "The results of this study are expected to make sintered SiC ceramic more attractive for numerous applications in various industries."

For more information on this research see: The usability and preliminary effectiveness of ultrasonic nanocrystalline surface modification technique on surface properties of silicon carbide. Applied Surface Science, 2014;311():448-460. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Surface Science - www.elsevier.com/wps/product/cws_home/505669)

The news correspondents report that additional information may be obtained from A. Amanov, Sun Moon UniversityDept. of Mech Engn, Asan 336708, South Korea. Additional authors for this research include Y.S. Pyun, J.H. Kim and S. Sasaki (see also Silicon).

Keywords for this news article include: Asan, Asia, Silicon, South Korea, Nanotechnology, Nanocrystalline, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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