论文部分内容阅读
前言烧结铝是用含有氧化铝的片状铝粉,经过压制、烧结和挤压等工序制成的弥散强化耐高温轻金属材料。由于弥散在铝基中的Al_2O_3阻碍位错运动,而且它还有较高的生成自由能、高的熔点(2050℃)、高的化学稳定性,因而烧结铝在300～500℃温度下,具有较高的强度和
Preface Sintered aluminum is a dispersion-strengthened, high-temperature, light-weight, light-weight metallic material made from sheet-like aluminum powder containing alumina after being pressed, sintered and extruded. Since Al 2 O 3 dispersed in the aluminum matrix impedes the dislocation movement and it also has higher free energy of formation, high melting point (2050 ° C.) and high chemical stability, the sintered aluminum has the properties of Higher intensity and