| 沙漠车用陶瓷活塞顶的研制 |
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| 引用本文： | 邬凤英,庄汉锐,李文兰,徐素英,罗新宇,符锡仁. 沙漠车用陶瓷活塞顶的研制[J]. 无机材料学报, 1998, 13(3): 423-426 |
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| 作者姓名： | 邬凤英 庄汉锐 李文兰 徐素英 罗新宇 符锡仁 |
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| 作者单位： | 中国科学院上海硅酸盐研究所; 上海 200050 |
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| 基金项目： | “八五”国家科技攻关项目!85-10-03-16 |
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| 摘 要： | 氮化硅陶瓷活塞顶是无冷机的关键部件之一．本工作选用高熔点的稀土氧化物为添加剂，在气氛加压炉内1800～1960℃，0．1～6MPaN2压力下进行烧结，制备了性能优越的氮化硅陶瓷材料．其常温抗弯强度为750MPa，断裂韧性为7．2MPa·m1/2，Weibull模数为12．3．使用该材料制备的氮化硅陶瓷活塞顶，装在6105型无水冷柴油机中，在规定的条件下进行耐久考核，已完成700h以上的台架实验，氮化硅陶瓷活塞顶装在EQ2060沙漠车上进行道路试验，已行驶1900km以上，经检验氮化硅陶瓷活塞顶完好无损．
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| 关 键 词： | 沙漠车 陶瓷活塞顶 无水冷柴油机 |
| 收稿时间： | 1997-05-09 |
| 修稿时间： | 1997-06-24 |
Ceramic Piston Crown for Truck Run in Desert |
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| WU Feng-Ying,ZHUANG Han-Rui,LI Wen-Lan,XU Su-Ying,LUO Xin-Yu,FU Xi-Ren. Ceramic Piston Crown for Truck Run in Desert[J]. Journal of Inorganic Materials, 1998, 13(3): 423-426 |
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| Authors: | WU Feng-Ying ZHUANG Han-Rui LI Wen-Lan XU Su-Ying LUO Xin-Yu FU Xi-Ren |
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| Affiliation: | Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China |
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| Abstract: | The silicon nitride ceramic piston crown is a critical component for the cooling-free diesel engine. The piston crown material used is GPS-RBSN with rare-earth oxide additives, sintered in the range of 1800～1960℃, under nitrogen pressure of 0.1～6 MPa, and its bend strength being 750 MPa, KIC 7.2 MPa·m1/2, weibull Modulus 12.3. Piston crowns made from this material were assembled in 6105 cooling-free diesel engines, the diesel engine constructed was rig-tested for more than 700 hours. The engine was installed in an EQ2060 truck and road-tested for more than 1900km in desert and no trouble found. |
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| Keywords: | desert truck ceramic piston crown cooling-free diesel engine |
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