Status of study on strengthening mechanism of rhenium in single crystal superalloys 铼在单晶高温合金中强化机理的研究现状
Study and application of the characteristics of adsorption rhenium with p350 latex resin 350萃淋树脂吸附铼的性能研究及应用
Determination of rhenium in rhenium - tungsten alloys - spectrophotometric method using dimethylglyoxime 钨铼合金中铼的测定丁二酮肟比色法
The correction of mass fractionation in the measurement of rhenium and osmium isotope ratios by icp - ms 电感耦合等离子体质谱法测量铼和锇同位素比值的质量分馏校正
Determination of ultratrace precious metals and rhenium in geological samples by inductively coupled plasma mass spectrometry 等离子体质谱法测定地质样品超痕量贵金属和铼
On the basis of dd6 alloy , four experimental single crystal superalloys with varying level of re were produced 摘要以dd6合金为基础,适当调整铼含量,浇注出4种不同铼含量的单晶合金。
Methods for chemical analysis of tungsten ores molybdenum ores . determination of rhenium content - potassium thiocynate photometric method 钨矿石钼矿石化学分析方法硫氰酸盐光度法测定铼量
Effects of rhenium on and ' microstructure characteristic , partitioning behavior of the alloying elements and volume fraction of ' in high temperature single crystal ni base superalloys were investigated 通过对标准热处理后合金试样扫描电镜和透射电镜的观察、测量和分析,研究了铼含量对热处理合金、 '相尺寸、分布、体积分数以及合金元素在两相间的分配行为的影响。
Situated in the shenzhen futian district shangmeilin donglin industrial zone , the shenzhen bolaide electronics co . , ltd . occupies a factory building area of more than 1 , 500 sq . m and engages mostly in the production / manufacturing , processing , design and marketing of smt and bonding 深圳市搏铼德电子有限公司位于深圳市福田区上梅林东林工业区,厂房面积1 , 500多平方米,主要是从事电子贴片( smt )和邦定的生产、加工和专业设计、制造、销售。
A large number of attempt and painstaking experiment have been done in this paper according to existing project . we also do lots of chemical and electrochemical etching research in material of lab6 , and find out three kind of methods to produce the field emitting cold cathode including reactive ion etching ( rie ) with oxygen , wet process etching and electrochemical etching . through produce some field emitting cold cathode single tip including lab6 field emitting cold cathode , molybdenum field emitting cold cathode , tungsten field emitting cold cathode , tungsten rhenium field emitting cold cathode , molybdenum covered with lab6 film field emitting cold cathode 而且,目前可借鉴的参考文献较少,围绕着前人做过的方案,本文做了大量工作,在已有文献介绍的基础上,结合原有的理论和实践基础,摸索出了包括高温氧作用反应离子( rie )刻蚀法、湿法腐蚀法和电化学腐蚀法在内的三种制备工艺,运用电化学腐蚀工艺成功制备了单尖的六硼化镧场发射冷阴极尖锥、钼场发射冷阴极尖锥、钨场发射冷阴极尖锥、钨铼合金场发射冷阴极尖锥以及有六硼化镧薄膜覆盖的钼场发射冷阴极尖锥。