Combined core - shell method with scm , pmw - pnn - pt ceramics with core - shell structure , which have excellent dielectric temperature stability , were successfully prepared . the new mechanism of improving temperature stability of dielectric properties was put forward . the main contents are lis ted as bellows : in the systems of pmn - pt , the effects of the chemical reactivities of the starting materials such as soluble mg - salts instead of mgo , pb - salts instead of pbo and ti ( oc4h9 ) 4 instead of tio2 respectively on the formation of perovskite phase were investigated in detail Scm法与cpm法的工艺相比,工艺简单,预烧温度和烧结温度低,反应时间短;陶瓷致密,介电性能比cmo法和cpm法明显得到改善,而且在没有pt存在时,仍可制得纯钙钛矿结构的pmn基、 pnn基、 pfw基陶瓷。
得: need纯: pure; unmixed已得纯利: net profit earned赚得纯利: net profit earned; net profit earnings得此失彼: gain in one thing and lose in another; you lose on the swings what you make on the round-abouts得春: tokuharu得次: tokuji得川: tokugawa; tokukawa得次郎: tokujiro得处理程序: call proce ing pragram; call processing pragram得寸进尺: (比喻贪婪的欲望) reach out for a yard after taking an inch -- be insatiable; give him an inch and he'll take an ell; much will have more.; the more gets, the more wants得出作出: arrive in得寸进尺的开端: the thin end of the wedge得出这样一个结论: come to the conclusion that……