用化学镀铜方法制备了纳米Al2O3化学镀铜复合粉末,并用常规粉末冶金方法对粉末的烧结特性进行了研究.纳米Al2O3化学镀铜复合粉末具有异常的粉末烧结特性和难于烧结的特点.通过对粉末清洗、热重分析(TG)、粉末及烧结试样的场发射扫描电镜(FT-SEM)及能谱(EDS)的观察分析,发现纳米Al2O3化学镀铜粉末表面吸附了化学镀溶液的杂质.这些杂质在粉末高温还原及烧结过程中发生热解,并在铜的表面沉积碳,影响了纳米Al2O3化学镀铜粉的烧结.
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