Pressure Generation above 35 GPa in a Walker-Type Large-Volume Press

来源 :中国物理快报(英文版) | 被引量 : 0次 | 上传用户:softzheng1
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Pressure generation to a higher pressure range in a large-volume press (LVP) denotes our ability to explore more functional materials and deeper Earths interior.Pressure generated by normal tungsten carbide (WC) anvils in a commercial way is mostly limited to 25 GPa in LVPs due to the limitation of their hardness and design of cell assemblies.We adopt three newly developed WC anvils for ultrahigh pressure generation in a Walker-type LVP with a maximum press load of 1000 ton.The hardest ZK01F WC anvils exhibit the highest efficiency of pressure generation than ZK10F and ZK20F WC anvils,which is related to their performances of plastic deformations.Pressure up to 35 GPa at room temperature is achieved at a relatively low press load of 4.5 MN by adopting th e hardest ZK01F WC anvils with three tapering surfaces in conjunction with an optimized cell assembly,while pressure above 35 GPa at 1700 K is achieved at a higher press load of 7.5 MN.Temperature above 2000 K can be generated by our cell assemblies at pressure below 30 GPa.We adopt such high-pressure and high-temperature techniques to fabricate several high-quality and well-sintered polycrystalline minerals for practical use.The present development of high-pressure techniques expands the pressure and temperature ranges in Walker-type LVPs and has wide applications in physics,materials,chemistry,and Earth science.
其他文献
埃利森在耶鲁大学2000届毕业生典礼上的演讲:rn耶鲁的毕业生们,我很抱歉--如果你们不喜欢这样的开场.我想请你们为我做一件事情.请你--好好看一看周围,看一看站在你左边的同
南充是农业大市,在产业结构调整的关键时期,推进实施“互联网+现代农业”势在必行。文章阐述了互联网与南充农业融合发展的现状和制约因素,并提出了“互联网+”背景下南充现代农
“手表定律”rn“手表定律”是指一个人有一只表时,可以知道现在是几点钟,而当他同时拥有两只表时却无法确定.“手表定律”给我们一种非常直观的启发--对同一个人或同一个组
全面从严治党是党的十八大以来党中央作出的重大战略部署,习近平总书记在十九大报告中强调,坚定不移全面从严治党,不断提高党的执政能力和领导水平。以习近平同志为核心的党中央
期刊
自从在奥克兰市府登记结婚后,我便开始问老公一个古老的问题,明知愚不可及,不问个水落石出就是不甘心:我和你母亲一起掉进水里,你先救谁?
自私的黄鼠活不了rn在北美洲草原上生活的欧黄鼠,当发现天敌丛林狼的踪迹时,总有一只站岗的鼠自愿挺身而出,会不顾自身安危,发出一阵长时间的尖锐哨声,向在草原上活动的鼠群
音乐剧是一门结合音乐,表演,舞蹈的综合性舞台艺术。具有综合性,现代性,多元化,商业性等主要特征。在剧院文化还不是很成熟的中国,音乐剧作为一个处于初步发展阶段的艺术形式,有着巨
This work[1] was additionally supported by the National Key R&D Program of China under Grant No 2018YFA0305700.
期刊
Negative refractive index has drawn a great deal of attention due to its unique properties and practical applications in wave systems.To promote the related phy
期刊
迥异的家庭出身,一样的少年老成rn普京和布什这两个世界上最有权力的男人的出身,代表了当今世界上精英人物的两种主要来源.