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J. Cent. South Univ. (2020) 27: 388-402 DOI: https://doi.org/10.1007/s11771-020-4304-3 A novel adsorbent of three-dimensional ordered macro/mesoporous carbon for removal of malachite green dye WAGN... area was synthesized by colloid crystal template method with chemical activation by KOH and used as the adsorbent for removing malachite green (MG) in aqueous solution. The microstructures......
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to 0.46 with decreased water permeability of saturated soil.Key words:saturated soil; boundary integral equations; wave scattering; dynamic stress concentration; Green’s function......
Study on the green upconversion saturation in Er3+ doped oxyfluoride tellurite glass DONG Liqiang1,DUAN Xiaoxia1,WEN Hongyu2,HUANG Shihua1,KANG Kai1 (1.Key Laboratory of Luminescence and Optical Information(Ministry of Education;2.Research Institute of Chemical Defense,Beijing 102205,China) Abstract:The upconversion emission spectra of Er3+ doped oxyfluoride tellurite glasses excited by 808 nm......
of impact energy and impact times on the green density, the maximal impact force and the withdraw force of specimen were investigated. The results indicate that the maximum of green density is 8.42 g/cm3 and its relative density is about 95% when the impact energy is 6 076 J. The green density of specimen fabricated by two impacts is better and the withdraw force is lower than that of specimen......
成形工艺对烧结法制备ITO靶材的影响王玥1,刘家祥1,刘宸1(1.北京市北京化工大学材料科学与工程学院)摘 要:以平均粒径为30nm的ITO粉体为原料,添加少量聚乙烯醇(PVA)造粒,模压成形获得素坯,在氧气氛,1550℃烧结素坯制备ITO靶材.采用100~600MPa的成形压力,添加0.5%,1.0%,2.5%的PVA制备靶材,研究压力和PVA添加量对靶材制备的影响.结果表明,成形压力在100~500MPa内,素坯及靶材密度随压力升高而增大,500MPa时达到最大值,分别为47.5%和99.16%.600MP......
temperature is decreased, the largest value of the residual tensile stress in the dangerous region can be reduced. Key words:green remanufacture; hot forged die; medium-high carbon steel; hardfacing......
我省萤石在日本市场走俏田丰摘 要:<正>由冶金总公司组团,一行八人于一九八八年到赴日本进行萤石贸易考察和谈判 在历时二十天的时间里,走访了十三家商社和厂家,共进行了十八次会谈,从考察日本萤石市场得到如下信息:关键词:......
加速我省钢铁工业的发展阎国勋云南省冶金厅计划处摘 要:文中介绍了我省钢铁工业的现状,发展钢铁工业的重要性以及发展钢铁工业的各种有利条件.关键词:......
我省新发现一些金银矿本刊编辑部摘 要:<正> 据报道:我省地质工作者在红河州蒙自县境内找到一个全省目前最大,以银为主的多金属矿床.该矿床伴生锡,铅,锌,硫,在我省是首先发现,综合利用价值高.它赋存于白云质灰岩中,矿体呈层状产出,经钻,坑,槽探揭露,预测银的储量在1500吨以上;已完工的90余个钻孔,基本孔孔见关键词:......