Hedge funds that had funded investments in oil futures by selling short on bank shares were caught in a vicious squeeze, as this strategy lost more than 40 per cent in a matter of weeks. 靠卖空银行股为原油期货投资提供资金的对冲基金陷入了恶性的逼仓中,采用此项策略的基金数周内损失了逾40%的资金。
The Analysis of Infiltration Process of Short Fiber Reinforced Metal Matrix Composites by Squeeze Cast 挤压铸造短纤维增强金属基复合材料浸渗过程分析
Al 2O 3+ C/ ZL109 short fibers reinforced hybrid metal matrix composites were fabricated by squeeze casting. The effect of carbon fiber content on friction and wear properties of the hybrid composites with fixed Al 2O 3 fiber volume fraction 12% was investigated. 利用挤压铸造法制备了Al2O3+C/ZL109短纤维混杂金属基复合材料,并探讨了Al2O3纤维体积分数为12%时,C纤维含量对该混杂复合材料摩擦磨损性能的影响。
The Solidification Interface of Alumina Short Fiber/ Aluminum Alloy Composites with the Squeeze Infiltration 氧化铝短纤维/铝合金复合材料挤压浸渗的凝固界面
Alumina and carbon short fibers reinforced Al-12 Si aluminum alloy ( Al 2O 3f+ C f/ ZL109) hybrid composites were fabricated by squeeze casting. The tensile strength of the hybrid composites at room temperature was experimentally and theoretically analyzed. 采用挤压铸造法制备了Al2O3f+Cf/ZL109短纤维混杂金属基复合材料,并对该混杂复合材料的常温拉伸强度性能进行了实验及理论分析。
Aluminosilicate ( Al2O3 SiO2) short fibre reinforced AlSi alloy composite was fabricated by means of squeeze casting and the interface between aluminosilicate fibre and AlSi alloy matrix was studied by TEM. 用挤压铸造法制备硅酸铝短纤维(Al2O3·SiO2)增强铝硅(Al-Si)合金复合材料,并利用透射电镜观察了Al2O3·SiO2纤维与Al-Si合金基体界面。
Abstract The solidifying structure of Al_2O_3 short fiber reinforced zinc alloy composite manufactured by squeeze casting has been studied. 采用挤压铸造制备了Al2O3短纤维增强锌合金复合材料,研究了其凝固组织。
Al2O3f+ Cf/ ZL109 short fiber reinforced composites were fabricated by squeeze casting, and low frequency vibration experiment was performed. 用挤压铸造法制备了Al2O3f+Cf/ZL109复合材料,并进行了振动钻削试验;