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| 1 | Progress and challenges towards additive manufacturing of SiC ceramic显示文摘Silicon carbide(SiC)ceramic and related materials are widely used in various military and engineering fields.The emergence of additive manufacturing(AM)technologies provides a new approach for the fabrication of SiC ceramic products.This article systematically reviews the additive manufacturing technologies of SiC ceramic developed in recent years,including Indirect Additive Manufacturing(Indirect AM)and Direct Additive Manufacturing(Direct AM)technologies.This review also summarizes the key scientific and technological challenges for the additive manufacturing of SiC ceramic,and also forecasts its possible future opportunities.This paper aims to provide a helpful guidance for the additive manufacturing of SiC ceramic and other structural ceramics. | Rujie HE Niping ZHOU Keqiang ZHANG Xueqin ZHANG Lu ZHANG Wenqing WANG Daining FANG | 2021 | Journal of Advanced Ceramics2021，10，4： | 9 |
| 2 | 3Y-ZrO2添加量对Al2O3陶瓷微观结构、力学和防弹性能的影响显示文摘本文探讨了3Y-ZrO2添加量及烧结温度对Al2O3陶瓷组成、微观结构、力学和防弹性能的影响。结果表明,随烧结温度的升高,添加3Y-ZrO2的Al2O3陶瓷的体积密度先增加后降低,表观气孔率的变化趋势相反,1550℃时,试样具有最高的体积密度和最低的气孔率,添加相通过钉扎作用促进Al2O3晶粒的细化,提高基体的烧结活性;添加后Al2O3陶瓷中主要包含a-Al2O3及少量的Tetragonal和MonoclinicZrO2,随3Y-ZrO2添加量增加,其在Al2O3中的分散均匀性先增加,后降低,当添加量为1.5%时,分散性最佳;当烧结温度从1450℃增加到1650℃时,试样的弯曲强度、维氏硬度和断裂韧性均先升高后降低,4#试样在1550℃具有最佳的力学性能,其弯曲强度为345.03 MPa、断裂韧性3.87 MPa×m^1/2,维氏硬度为1572.8MPa,优异的性能得益于3Y-ZrO2在Al2O3陶瓷中的均匀分布以及裂纹扩展时发生的T-M相变增韧。当Al2O3陶瓷的主要参数(包括:密度、弯曲强度、硬度和断裂韧性和厚度)的数值乘积大于4.49×10^7时,陶瓷片的防弹性能满足五级防护要求。 | 王玲 颜进 高朋召 谢志勇 许涛 高波 肖汉宁 | 2020 | 陶瓷学报2020，41，2： | 1 |
| 3 | Reactive-sintering B_4C matrix composite for armor applications显示文摘The B4C matrix composite intended for armor applications still presents restrictions,such as low sintering density,production of large parts and inherited brittleness Herein,research on this topic is discussed in detail.First the material outlook of armor applications is organized from the development of composite armor and ceramic materials for armor to the B4C matrix composite and reactive-sintering method.In the second section,the technologies are reviewed for reactive pressureless sintering reactive hot-pressing sintering,reactive discharge plasma sintering and self-propagating high-temperature sintering Thereafter,our previous works on the TiB2/SiC/B4C composite and laminated Ti/B4C composite are employed to illustrate their microstructural evolution,phase transformation and fracture model.These studies provide a potential method for producing tough and high-strength ceramic composites for armor application.In the fina section,the mechanism,evaluation method and influencing factors of anti-penetration for ceramic armor and B4C matrix composite are reviewed. | Chao Wu Yun-Kai Li Chun-Lei Wan | 2020 | Rare Metals2020，39，5： | 1 |
| 4 | Influence of nickel addition on the microstructure and mechanical properties of Al2O3–5vol%ZrO2 ceramic composites prepared via precipitation method显示文摘The aim of this work was to investigate the microstructure and mechanical properties of 1vol%-Ni-added yttria-stabilized zirconia (YSZ) toughened alumina composites. First, Ni powders were heterogeneously precipitated in an alumina–zirconia powder mixture suspended in water;the prepared specimens were then pressureless sintered at 1550°C/2 h in a 90vol%Ar/10vol% H2 atmosphere. The structure of phases and microstructure of the composites were characterized by X-ray diffraction and scanning electron microscopy, respectively. Mechanical characterization of the specimens was carried out through Vickers hardness, Vickers indentation toughness, and three-point flexural bending tests. The fine Ni particles were homogeneously dispersed throughout the alumina matrix because of the employed processing method. Furthermore, hardness and toughness values were found to increase by 8% and 50%, respectively, with Ni addition, whereas the relative densities and flexural strength values were found to remain unchanged. | Betül Kafkasl?o?lu Y?ld?z Hüseyin Y?lmaz Yahya Kemal Tür | 2019 | International Journal of Minerals,Metallurgy and Materials2019，26，7： | 1 |
| 5 | 多孔SiC/Ti非晶合金复合材料的动态压痕响应行为(英文)显示文摘多孔SiC/Ti基非晶合金复合材料作为一种新型的复合材料,在轻质装甲领域具有重要的应用前景。通过对比研究该复合材料在静态和动态加载下的硬度和相应的压痕变形特征,揭示该复合材料的动态响应行为,评估其冲击性能,其中动态硬度采用自主设计的基于分离式霍普金森压杆(SHPB)的改进装置进行测试。研究发现复合材料的动态硬度明显高于静态硬度,其动态脆性参数也明显高于静态脆性参数。该复合材料在静态和动态加载下的变形和断裂特征并无显著差别,均表现为SiC相中形成了大量的裂纹而非晶相发生了剧烈的塑性变形,所不同的仅是动态压痕加载下的变形行为比静态更剧烈。 | 王本鹏 王鲁 薛云飞 王扬卫 张海峰 付华萌 | 2016 | Transactions of Nonferrous Metals Society of China2016，26，12： | 0 |
| 6 | SiC陶瓷复合板热压罐成型工艺研究显示文摘用热压罐成型方法,以SiC陶瓷片、玻璃纤维织物、聚乙烯基树脂、聚酯薄膜为基材,制备了SiC陶瓷复合板,考察了不同温度、压力和保温保压时间对产品结构性能的影响。结果表明,采用热压罐成型的方法,成型温度、成型压力、保温保压时间分别控制在140℃,1.5 MPa,60 min可以获得具有良好结构和粘接性能的SiC陶瓷复合板,其剥离强度可达2.81 k N/m。 | 辛培训 李宁 王玲 汪得功 王吉辉 郭雁 黄玉松 郑威 | 2015 | 工程塑料应用2015，41，11： | 0 |
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