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to measure the flexural strength via the three-point bending test (Instron5566, INSTRON, Norwood, MA); the supporting distance of 30.0 mm and a cross-head speed of 0.5 mm/min were used. The open porosity... J. Cent. South Univ. (2020) 27: 2548-2556 DOI: https://doi.org/10.1007/s11771-020-4480-1 Fabrication and flexural strength of porous Si3N4 ceramics with Li2CO3 and Y2O3 as sintering additives HU......
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device; the axial compressive strength and initial permeability of the circular thin plate specimens caused by porosity were investigated; time difference between axial load and peak of seepage flow caused by the porosity in deformation process of the circular thin plate bending specimen was explored; the permeability variation of circular thin plate specimens in the process of bending deflection......
料的. 图6 Al-50%Sip复合材料的抗拉强度和抗弯强度与Cu含量的关系 Fig. 6 Relationship between tensile strength, bending strength of Al-50%Sip composites and Cu content 添加合金元素的Al-50%Sip复合材料抗拉强度和抗弯强度主要取决于以下两个方面:一是增强体... uniformity decreases when the Cu content is more than 2%. The tensile strength and bending strength of the samples rise at first and go down latter with the increase of the Cu. When Cu content is 2......
Bending analysis and control of rolled plate during snake hot rollingZHANG Tao(张涛)1, 2, WU Yun-xin(吴运新)1, 2, GONG Hai(龚海)1, 2, 3, ZHENG Xi-zhao(郑细昭)1, 2, JIANG Shao-song(蒋绍松)1, 2(1. State Key.... School of Materials Science and Engineering, Central South University, Changsha 410083, China)Abstract:In order to study the bending behavior of aluminum alloy 7050 thick plate during snake hot......
. The bending strength and modulus of laminated puncture structural Cf/Al composites are 327 MPa and 114 GPa, respectively. In the compression area of the inner side, the matrix appears clusters...测试精度为示值的±1%以内. 图4 叠层穿刺结构Cf/Al复合材料弯曲试样 Fig. 4 Bending specimen of laminated puncture structural Cf/Al composites 从叠层穿刺结构Cf/Al复合材料板上取5处尺寸为10 mm×10 mm×5 mm的试样,采用STP JA1003电子天平分别测得试样在空气和蒸馏水中的......
in bending process with high strength steel sheet DONG Wenzheng1, 2, XU Ling1, LIN Qiquan1 (1. School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China; 2. State Key... results coincide well with the numerical simulation results, which certifies the validity and feasibility of those two methods. Key words: high strength steel sheet; bending; contact pressure......
bending impact and fatigue strength. We found that the developed steel that was carbonitrided with a content of about 0.9 mass%, and then shot peened hard, has a pitting life of roughly 4.5 times...Development of High Strength Steel Designed for Carbonitriding with High Nitrogen Content to Be Used for Automatic Transmission Gears Youichi Watanabe1 (1.Nissan Motor Co., Ltd., 6-1, Daikoku-cho......
ZnO/Y_2O_3 对氧化铝基陶瓷性能的影响 包启富1,董伟霞1,顾幸勇1 (1.景德镇陶瓷学院材料与工程学院,江西,景德镇,333001) 摘要:研究了ZnO/Y_2O_3复合添加剂对75%氧化铝基陶瓷烧结性,体积密度,抗折强度和物相组成的影响. 结果表明: 当ZnO/Y_2O_3为1∶ 0.3时, 在1290 ℃烧结后, 样品的性能可达到: 抗折强度149.9 MPa和体积密度3.16 g·cm~(-3). XRD分析结果表明: ZnO/Y_2O_3不同比例复合时, 锌铝尖晶石相,钙长石相和刚玉相发生了较大变化, 从而影响了材料的性能. 关键词:氧化铝基陶瓷; 烧结性能; 抗折强度; 体积密度; alumina-based ceramics; sintering properties; bending strength; bulk density; [全文内容正在添加中] ......
increase greatly. The bone meals are comprised of hydroxyapatite and a spot of organic compound such as protein, and the mechanical properties of composites such as bending strength and elastic modulus...(L-lactide); composites; bending strength; elastic modulus 目前,作为骨科最常用的内固定材料的金......