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潜装备关键技术的自主可控能力,早在2009年蛟龙号尚未完成海试之时,863计划又布局了4500米载人潜水器也就是深海勇士号设计与关键技术研究项目.历经8年持续艰苦攻关,深海勇士号实现了载人舱等耐压结构和材料,锂电池新能源,海水均衡系统,液压作业系统,声学通信,水下定位,控制软件和执行机构等关键部件的国产化,潜水器装备自主化率达到95%,并于2017年10月成功完成海试,为深海载人深潜高端装备实现.... [5] LIU Feng, CUI Wei-cheng, LI Xiang-yang. China’s first deep manned submersible, JIAOLONG[J]. Science Ching(Earth Sciences), 2010, 53(10): 1407-1410. [6] 岳峰. 我国大洋科考发展历程[J]. 百科探秘(海底世界), 2015, (Z2......
in machining of advanced ceramics are mainly affected by the tool materials and cooling condition[10]. The extremely high tool wear rate and surface damage of ceramics produced during machining are mainly... HF:5 mL HNO3:3 mL CH3COOH[50]; and Sailer etchant, contains 300 mL HNO3:600 mL HF:2 mL Bs:24 g Cu(NO3)2: dilute 10:1 with H2O[54]. Factors that influence etching rate are solution, solution......
in FSW, as the heat generated is not severe enough [10]. 1.1 FSW process FSW is a joining technique developed by The Welding Institute (TWI) of Cambridge, England, in 1991 [11]. In FSW, a cylindrical.../min and traverse speed of 11 mm/s. For these optimum conditions, the tool wear will not exceed 10%. Fig. 6 Pin tool wear with respect to weld traverse distance [40] PRADO et al [44] investigated......
颅骨多孔修复体设计与激光选区熔化制造. 6.3 汽车制造领域 传统的开模铸造周期一般较长,影响研发效率,而且存在缩孔和内部微裂纹的问题,而激光选区熔化工艺可以快速制造出复杂的汽车构件,力学性能接近锻件水平.高志鹏等[75]针对研发效率问题提出一种发动机缸盖的激光选区熔化成形方案,并打印出发动机缸盖结构样件,如图10所示. 7 存在的问题及展望 图9 个性化牙冠...)[74] 图10 激光选区熔化铝合金发动机缸盖外观[75] Fig. 10 Appearance of selective laser melted aluminum alloy engine cylinder head[75] 激光选区熔化技术与传统加工方式相比具有成型速率快,成型件性能优良等优势,但是目前铝合金及复合材料的激光选区熔化技术及其成形件的组织性能仍然存在一些问......
).SU等[80]研究发现BaTiO3颗粒的粒径为10 nm时H2的生成速率较快,达到了655 μmol/(g·h).许多二维的多层材料也可通过压电效应分解水制氢[81]. ZHAO等[82]在可见光照射下,使用单组分CdS压电光催化分解纯水制H2.他们将同时具备压电和可见光光催化性能的CdS纳米棒阵列原位组装在FTO基板上,以收集水中的太阳能和超声振动能.CdS中超声感应的压电场驱动光生电荷载体的... fiber microspheres to different dye solutions[J]. Journal of Hubei Institute of Technology, 2017, 33(5): 25-28, 54 . [10] 黄 凯, 李一飞, 焦树强, 等. 柠檬酸活化赤泥对亚甲基蓝染料废水的吸附净化作用[J]. 中国有色金属学报, 2011, 21(12): 3182-3188......
of the stirred region. Onion ring structure was observed in the SZ of FSW which was changed to V-shape in the case of UFSW in AA 7050, as shown in Fig. 10 [73]. Also, different strengthening phases also... observed in the SZ of AA 7055 during FSW [38,69] and UFSW of AA 7050, as shown in Fig. 10(b) [73]. The ‘‘S line’’ is a kind of weak connection defect which determines the characteristics of joints......
, Hartzell E T, Akerman Jan G H. Cemented carbide body used preferably for rock drilling and mineral cutting[P]. USA 4743515. 1988. [10] 张 力, 陈 述, 熊湘君. 双相结构功能梯度WC-Co合金的微观组织结构与小负荷维氏硬度[J]. 中国有色金属学报, 2005, 15......
. ferrooxidans,At. ferrooxidans,L. ferrooxidans和At. caldus混合培养以及高铁离子分别浸出黄铁矿的效果,结果发现,L. ferrooxidans浸出体系中存在连四硫酸盐,连五硫酸盐和大量单质硫,其中单质硫占10%,连五硫酸盐2%,连四硫酸盐1%,且中间硫化合物的组成与单纯高酸高铁溶液浸出时的结果基本相同；单独采用At. ferrooxidans浸... Guan-zhou. Isolation and identification of a new strain in Sulfobacillus thermosuffidooxidans[J]. Acta Scientiarum Naturalium Universtatis Normalis Hunanensis, 2007, 30(4): 104-109. [10] 丁建南. 几种高温浸矿菌......
of time. The highest zinc and copper recoveries of 89.2% and 36.4% respectively are obtained at particle size of 75 ?m, stirring speed of 150 r/min, pulp density of 10% (w/v), 12% (v/v) inoculum... optimal particle size range where the dissolution will be the highest. The pulp density was kept at 10% (w/v), while the volume of inoculum was 6% (v/v). The optimal stirring speed was determined......
Industry Press, 2002: 113-137. [10] 郭 巍, 刘招君, 董惠民, 等. 松辽盆地层序地层特征及油气聚集规律[J]. 吉林大学学报: 地球科学版, 2004, 34(2): 216-221.GUO Wei, LIU Zhao-jun, DONG Hui-min, et al. The sequence stratigraphic features......
