We have studied mineralogical characteristics of Fe-Si oxide precipitates from hydrothermal fields of the Valu Fa Ridge, Lau Basin, especially the role that the neutrophilic Fe-oxidizing bacteria played in their formation, using various analytical techniques (XRD, SEM, EPMA, TG/DTA, and FTIR). Ac...
We have studied mineralogical characteristics of Fe-Si oxide precipitates from hydrothermal fields of the Valu Fa Ridge, Lau Basin, especially the role that the neutrophilic Fe-oxidizing bacteria played in their formation, using various analytical techniques (XRD, SEM, EPMA, TG/DTA, and FTIR). Ac...
采用旋铸急冷工艺在真空条件下制备出(Ni0.75Fe0.25)70Zr8Si10B12合金条带.经X射线衍射(XRD)分析表明样品为完全非晶.用DiamondTG/DTA差热分析仪在高纯氩气保护下测量了... 王翠霞,陈学定,魏恒斗,... - 《稀有金属》 被引量: 0发表: 2006年 纳米微晶Fe_(69.5)(CuCrV)_(9.5)Si_(13)B_8在不同温度下...
采用工业原料通过水冷铜模铸造法制备了直径为5 mm的Fe69C7.0Si3.584.8P9.6Cr2.1Mo2.0Al2.0块体非晶态合金.利用DSC,DTA和XRD对该非晶态合金的热稳定性进行了研究.其玻璃转变温度Tg,过冷液相区△Tx(=Tx-Tg),约化玻璃转变温度Trg(=Tg/Tl)和玻璃形成能力参数γ(=Tx/(Tg+Tl))分别为784 K,27 K,0.601和...
采用Sol-gel法制备了纯的和掺杂不同量 Cu的 Ti O2 纳米粒子 ,并用 TG-DTA,XRD,XPS,UV-Vis和荧光光谱对样品进行了表征 ,考察焙烧温度和 Cu含量对 Ti O2 纳米粒子的性... 辛柏福,井立强,付宏刚,... - 《高等学校化学学报》 被引量: 182发表: 2004年 合金化Cr优化含Fe过共晶Al-Si合金显微组织及其机制...
The interaction among Cu-Fe catalysts was studied by XRD, TG-DTA-DTG, CO-TPD and H2-TPD techniques. 用XRD、TG-DTA-DTG、CO-TPD和H2-TPD等技术,对三种Cu-Fe催化剂的物相、还原和程序升温脱附行为进行研究,发现不同制备方法得到的CuO-Fe2O3复合体系间存在着不同的相互作用。6...
Ni—Fe—Zr-Si—B非晶合金的形成和热稳定性研究 维普资讯 http://www.cqvip.com
Ni基非晶合金玻璃转变温度晶化温度等温晶化相转变采用旋铸急冷工艺在大气环境中制备出了(Ni0.75Fe0.25)78-xZrxSi10B12(x=0,8)非晶合金带材.X射线衍射分析表明样品为完全非晶.采用Diamond TG/DTA差热分析仪测量非晶薄带的热稳定性及其相关参数Tg,Tx,Tm等.根据DTA结果分析,(Ni0.75Fe0.25)78Si10B12非晶合金退火...
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