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化学气相沉积金刚石膜的硬度
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作者 唐才先 罗廷礼 +7 位作者 张永贵 臧建民 潘存海 石尔平 吕反修 唐伟中 钟国仿 M.Samandi 《河北省科学院学报》 CAS 1999年第4期34-36,41,共4页
使用力驱动静态超微压痕测量仪器(Force Driven Static Measuring Ultra Micro- Inden-tation System )- UMIS- 2000 对由直流等离子体喷射法沉积的金刚石膜进行... 使用力驱动静态超微压痕测量仪器(Force Driven Static Measuring Ultra Micro- Inden-tation System )- UMIS- 2000 对由直流等离子体喷射法沉积的金刚石膜进行测量。结果显示金刚石膜的硬度不仅与晶体生长方向和晶粒大小有关,还与厚度有关。生长面和与基底接触面的金刚石膜硬度也有区别。后者被认为由于随机取向的微小晶粒占优势,其硬度比生长面略高。在所进行的测量中,硬度值在90GPa左右。 展开更多
关键词 CVD 金刚石膜 硬度 超微压痕测量法
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Influnce of Stoichiometry and Molar Ratio of Barium Ferrite Thin Film Synthesized by Sol-gel on Alumina Substrate 被引量:2
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作者 AliGhasemi M.R.Shams +2 位作者 A.Saatchi M.Salehi A.Hosseinpour 《材料热处理学报》 EI CAS CSCD 北大核心 2004年第05B期1313-1315,共3页
Amorphous gels were processed with a varying Fe/Ba ratio of 11/5, 28/2, 10.5/1 in water and Solvent. Iron and barium nitrites with specific molar ratio was solved in water and slovent at 60°C for 3 hours until! a... Amorphous gels were processed with a varying Fe/Ba ratio of 11/5, 28/2, 10.5/1 in water and Solvent. Iron and barium nitrites with specific molar ratio was solved in water and slovent at 60°C for 3 hours until! a dark brown solution was prepared . The sols were introduced to substrate dropwise and spinning with 2000 rpm in 3 min was applied ; the work was repeated for 10 times and the samples were dried and sintered . The TGA analysis was used to identify the heating rate of the samples; at temperature of 1150°c for one hour the final phase was attained . the thickness , uniformity , morphology and the composition were examined by SEM and XRD. The study shows that the fabrication barium ferrite film of the molar ratio of Fe/Ba = 10.5/1 is much more suitable than other ratios . 展开更多
关键词 溶胶凝胶 钡铁氧体 摩尔比率 氧化铝基片
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