检索结果-南通市图书馆

Tribological Properties of dlc film Prepared by C^+ Ion Beam-assisted Deposition (IBAD)

Journal of Wuhan University of Technology(Materials Science) 2006年第1期21卷 49-52页

作者：白秀琴 Peter Bhm Reliability Engineering Institute Wuhan University of Technology Wuhan 430063ChinaWuhan Research Institute of Materials Protection Wuhan 430030 China IAVF Antriebstechnik AG 76187 KarlsruheGermany

C ^＋ ion beam-assisted deposition was utilized to prepare deposit diamond-like carbon （ dlc ） film. With the help of a series of experiments such as Raman spectroscopy, FT-IR spectroscopy, AFM and nanoindentation , the dlc film has been recognized as hydrogenated dlc film and its tribologicul properties have been evaluated. The bull-on-disc testing results show that the hardness and the tribologicul properties of the dlc film produced by C^ ＋ ion beam- assisted deposition are improved significantly. dlc film produced by C ^＋ ion beam- assisted deposition is positive to have a prosperous tribologicul application in the near future.

关键词： dlc film C ^+ ion beam- assisted deposition (IBAD) tribological properties

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of cryogenic treatment on membranebased binding strength of dlc film/quenched W9 high-speed steel

Effect of cryogenic treatment on membranebased binding stren...

引用

2014中国功能材料科技与产业高层论坛

作者： ZHAO Yang NIE Chao-Yin NIE Yan-Zhong LIU Xiao-Dong GONG Xiao-Ling Faculty of Materials and Energy Southwest University

The 2μm thick dlc film was deposited by unbalanced magnetron sputtering technique on quenched W9 high-speed steel substrate,and the membrane-based system was treated with cryogenic treatment at-196℃for 30 *** rockwell hardness tester,nano scratch tester,EDS,SEM and XRD,the membrane-based binding strength of dlc film/highspeed steeLmain elements’line distribution of membrane-based section,and substrate organizational structure were respectively detected before and *** results show that membrane-based binding force is approximately increased from1200mN to 1400mN through *** is most mainly because the quenched high-speed steel substrate is occurred to martensitic transformation and martensitic decomposition in cryogenic process,which leads to the increase of substrate grain boundary,at warmed stage of cryogenic providing more short-range channels for dlc film’s C element to diffuse to the substrate surface,and more place for segregation along grain boundary with the newly formed carbides having a pinning effect on the substrate.

关键词： dlc film Cryogenic Membrane binding strength C element diffusion Increasing of grain boundary

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Tuning C-C sp2/sp3 ratio of dlc films in FCVA system for biomedical application

引用

Bioactive Materials 2020年第2期5卷 192-200页

作者： Xi Rao Jihan Yang Zilin Chen Yidie Yuan Qiubing Chen Xue Feng Lizhao Qin Yongping Zhang Key Laboratory of Luminescent and Real-Time Analytical Chemistry(Southwest University) Ministry of EducationSchool of Materials and EnergySouthwest UniversityChongqing400715PR China Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing Southwest UniversityChongqing400715PR China Department of Clinical Laboratory University-Town Hospital of Chongqing Medical UniversityChongqing401331PR China

Diamond like carbon(dlc)films with different C-C sp2/sp3 ratios were prepared by tuning the N2 flow rate in a filtered cathodic vacuum arc(FCVA)*** increase of N2 flow rate facilitated the increase of C-C sp2/sp3 ratio(1.09-2.66),the growth of particle size(0.78-1.58 nm)and the improvement of surface *** SBF immersion results,as well as WCAs(77.57°~71.71°),hemolysis rate(0.14-1.00%)and cytotoxicity level(0)demonstrated that the as-fabricated dlc film was promising for biomedical *** a result of surface charge effect,the apatite layers formed in the SBF increased with the increase of C-C sp2/sp3 ratio until 1.74 and then showed a tiny decrease during 1.74-2.66.A raise of hemolysis and cytotoxicity was observed when sp2/sp3 ratio was ***,a decrease of friction coefficient of Si surface induced by increasing sp2/sp3 ratio was respectively evidenced in ambient air and SBF lubrication environments.

关键词： dlc film FCVA system Apatite formation Hemolysis Cytotoxicity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

FABRICATION OF dlc COATED COBALT-CEMENTED TUNGSTEN CARBIDE MICRO-DRILLS AND THEIR CUTTING PERFORMANCE

引用

Transactions of Nanjing University of Aeronautics and Astronautics 2007年第2期24卷 89-93页

作者：马玉平陈明向道辉孙方宏上海交通大学机械与动力工程学院

In machining the particle reinforced aluminum based composite material with high Si content using the cobalt-cemented tungsten carbide micro cutting tools, diamond like carbon （dlc） films are deposited on cobalt-cemented tungsten carbide micro-drills with two-step pretreatment method. Characteristics of dlc coated tools are investigated in bias-enhanced HFCVD system with the optimized hot filament arrangement. The optimization deposition technology is obtained and the wear mechanism of cutting tools is analyzed. The drilling performance of dlc coated tools is verified by the experiments of cutting particle reinforced aluminum based composite material （Si 15% in volume） compared with uncoated ones. Experimental results show that the two-step pretreatment method is appropriate for complex shaped cemented carbide substrates and ensures the good adhesive strength between the diamond film and the substrate. The cutting performance of dlc coated tool is enhanced 10 times when machining the Si particle reinforced aluminum based metal matrix composite compared with that of uncoated ones under the same cutting conditions.

关键词： dlc film bias-enhanced HFCVD cobalt-cemented tungsten carbide cutting tool micro-drilling cutting performance

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Tribological Characteristic of Diamond-like Carbon films Investigated by Lateral Force Microscope

引用

Journal of Wuhan University of Technology(Materials Science) 2004年第B10期19卷 27-29页

作者：丁建宁 Jiangsu University

Tribological characteristic of different thick diamond-like carbon (dlc) films was studied. A geometrical method was applied to calibrate the cantilever spring constant and to calculate the normal and lateral forces, respectively. Experimental results show that the lateral force under different applied loads is proportional to the normal force for the dlc films with the thickness of 153.4nm and 64.9nm. However, for the thickness of 4.48nm and 2.78nm dlc films, lateral force is nonlinear to normal force, which is opposed to the Amonton's *** single asperity regime and the DMT model were put forward to predict the possible nanotribological mechanism between the probe and dlc film.

关键词： dlc film LFM friction calibration force constant

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：