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2篇 您的检索式：作者名="Si Longchen"

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		题名	作者	年代	出处	被引量
	1	Confirmation of flixweed (descurainia sophia) resistance to tribenuron-methyl using three different assay methods显示文摘	Xian Xu Gui Qiwang Si Longchen Cui Qinfan Bing Huali	2010	Weed Science2010，58，1：	1
	2	Research on Fe-based impregnated diamond drill bits strengthened by Nano-NbC and Nano-WC显示文摘In order to improve the matrix performance of impregnated diamond drill bit to better meet the drilling needs,the effects of the addition of nano-WC and nano-NbC particles on the matrix material together with the mechanical properties and microstructure of the diamond-matrix composite material of the Fe-based diamond drill bit were studied by using the method of uniform formula design,regression analysis and solution finding.An indoor drilling test was also carried out using the fabricated impregnated diamond drill bit.The results showed that after the addition of nano-NbC and nano-WC,the hardness and flexural strength of the matrix material got improved,as the flexural strength of the diamond composite material increased to 4.29%,the wear-resistance ratio increased to 8.75%,and the tighter the chemical bonding between the diamond and the matrix.This,indicates that the addition of nanoparticles has a positive significance in improving the performance of the diamond composite.The results of the drilling test showed that the mechanical drilling speed of the impregnated diamond drill bit after nanoparticle strengthening is 25.85%higher than that of the conventional drill bit,and the matrix wear was increased by 17.5%.It proves that nanoparticles can improve the drilling performance and efficiency of drill bit.	Ekene Matthew Egwuonwu Uzodigwe Emmanuel Nnanwuba CHANG Si DUAN Longchen NING Fulong LIU Baochang	2023	Global Geology2023，26，1：	1

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