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高速列车制动盘材料的研究进展 被引量:41
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作者 宋宝韫 高飞 +2 位作者 陈吉光 于庆军 Yves Berthier 《中国铁道科学》 EI CAS CSCD 北大核心 2004年第4期11-17,共7页
综述提高高速列车制动盘能量和降低盘重方面的研究成果。研究用C—C纤维复合材料、陶瓷材料、铝基陶瓷强化复合材料,以及材料表面强化技术等改善高速列车制动盘材料性能的问题。分析认为C—C纤维复合材料密度低、耐高温性能好,但表现出... 综述提高高速列车制动盘能量和降低盘重方面的研究成果。研究用C—C纤维复合材料、陶瓷材料、铝基陶瓷强化复合材料,以及材料表面强化技术等改善高速列车制动盘材料性能的问题。分析认为C—C纤维复合材料密度低、耐高温性能好,但表现出环境影响摩擦性能的问题;陶瓷材料具有优良的摩擦性能,但具有韧性低的问题;铝基陶瓷强化复合材料密度低,但面临着使用温度较低的问题;材料表面强化技术可提高钢盘的摩擦性能,但仍需要解决不同材料间的结合性能问题。 展开更多
关键词 高速列车 盘形制动 摩擦材料 综述
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Influence of Construction Materials and Building Orientation on Building Thermal Load in Hot and Dry Tropical Climate 被引量:1
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作者 Ousmane Coulibaly Frederic Kuznik +1 位作者 Dominique Baillis Abdoulaye Ouedraogo 《Journal of Energy and Power Engineering》 2015年第12期1065-1071,共7页
This paper is concerned with the determination of the thermal energy performances of individual houses built with "H" shape bricks in hot and dry tropical climate (different cities of Burkina Faso and the city of B... This paper is concerned with the determination of the thermal energy performances of individual houses built with "H" shape bricks in hot and dry tropical climate (different cities of Burkina Faso and the city of Bamako in Mali). The bricks' matrices include three void spaces which are filled during construction with either clay-grass mixture or with entirely clay matter. After measuring the diffusivity of the clay matter and cement bricks samples utilizing the Flash method, we determine the "H" shape bricks' thermal equivalent conductivity using the HEAT software. The house, modeled utilizing the TRNSYS software, reveals that, besides their economical and environmental advantages, houses constructed with "H" shape bricks filled with clay, show approximately the same energy consumption patterns as void cement bricks houses. On the other hand, houses built utilizing "H" shape bricks filled with clay-grass mixture, which have low thermal conductivity, show a reduced air conditioning load. We also study the influence of the building orientation on the energy consumption. 展开更多
关键词 "H" shape bricks' clay-grass bricks clay bricks Flash method
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