金刚石与磨料磨具工程
金剛石與磨料磨具工程
금강석여마료마구공정
DIAMOND & ABRASIVES ENGINNERING
2014年
4期
25-30
,共6页
魏齐龙%李晓媛%岳晓斌%张晓峰%雷大江%刘波
魏齊龍%李曉媛%嶽曉斌%張曉峰%雷大江%劉波
위제룡%리효원%악효빈%장효봉%뢰대강%류파
单晶金刚石%微观性能%纳米压入%载荷%压头钝化
單晶金剛石%微觀性能%納米壓入%載荷%壓頭鈍化
단정금강석%미관성능%납미압입%재하%압두둔화
single-crystalline diamond%microscopic properties%nano-indentation%load%blunting of indenter
研究单晶金刚石的微观机械性能,可为金刚石工具的研磨和使用性能评价提供技术依据。提出以纳米压入技术研究单晶金刚石微观尺度机械性能,分析了纳米压入技术的主要原理及其技术特点,进行了纳米压入测量实验并分析了各种因素的影响。研究表明:采用10 mN 的 ADO 载荷和小于10 mN 的最大压入载荷对单晶金刚石{100}晶面进行纳米压入测量,可显著减小甚至避免金刚石压头的变形和损伤,获得有效的压入曲线及数据;但在多次测量后会出现金刚石压头的累积钝化。基于测量过程和结果的分析,提出了提高测量有效性的方法。
研究單晶金剛石的微觀機械性能,可為金剛石工具的研磨和使用性能評價提供技術依據。提齣以納米壓入技術研究單晶金剛石微觀呎度機械性能,分析瞭納米壓入技術的主要原理及其技術特點,進行瞭納米壓入測量實驗併分析瞭各種因素的影響。研究錶明:採用10 mN 的 ADO 載荷和小于10 mN 的最大壓入載荷對單晶金剛石{100}晶麵進行納米壓入測量,可顯著減小甚至避免金剛石壓頭的變形和損傷,穫得有效的壓入麯線及數據;但在多次測量後會齣現金剛石壓頭的纍積鈍化。基于測量過程和結果的分析,提齣瞭提高測量有效性的方法。
연구단정금강석적미관궤계성능,가위금강석공구적연마화사용성능평개제공기술의거。제출이납미압입기술연구단정금강석미관척도궤계성능,분석료납미압입기술적주요원리급기기술특점,진행료납미압입측량실험병분석료각충인소적영향。연구표명:채용10 mN 적 ADO 재하화소우10 mN 적최대압입재하대단정금강석{100}정면진행납미압입측량,가현저감소심지피면금강석압두적변형화손상,획득유효적압입곡선급수거;단재다차측량후회출현금강석압두적루적둔화。기우측량과정화결과적분석,제출료제고측량유효성적방법。
It would provide technological basis for lapping and using properties of single-crystalline diamond tools by researching their microscopic mechanical properties.Nano-indentation technology was introduced to study microscopic mechanical properties of single-crystalline diamonds.Main theory and technological characteristics of nano-indentation were analyzed.Nano-indentation was conducted on a diamond,and influences of various factors were discussed.It was found that nano-indentation on the{100}crystalline plane of the diamond with ADO load 10 mN and the maximal indentation load less than 10 mN,could reduce and even avoid deformation and damage of indenters,and produce effective curves and data.But in repeating indentation measurements,indenters would become blunt gradually. Methods were brought forward to improve effectiveness of indentation measurement based on analysis of measuring course and results.