[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fVy4rmaaQ6sVgOUTMERODFfbP5EZa5pkMiUuFdahJKt4":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":118,"createTime":26},34807988,"v2","形成临界晶核时体积自由能的减少只能补偿表面能的( )",[8,9,10,11],"2019\u002F1\u002F3","2019\u002F2\u002F3","2019\u002F3\u002F4","2019\u002F1\u002F2",[],[14,27,36,47,57,67,77,87,97,107],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},34807800,"纯金属凝固时晶体的生长形态取决于界面的微观结构和界面前沿液相中的温度分布,以下通常以明显的树枝状方式生长的是",[18,19,20,21],"微观光滑界面在正温度梯度下","微观光滑界面在负温度梯度下","微观粗糙界面在正温度梯度下","微观粗糙界面在负温度梯度下",[],[],0,null,"2023-05-07T23:35:53+08:00",{"id":28,"source":5,"question":29,"options":30,"answer":33,"related":34,"type":35,"origin":25,"createTime":26},34807803,"离子键中出现电子得失,这也是其导电性较好的原因",[31,32],"对","错",[],[],3,{"id":37,"source":5,"question":38,"options":39,"answer":44,"related":45,"type":46,"origin":25,"createTime":26},34807806,"对于二元系合金,除了共晶转变和包晶转变是可以在恒温下进行外,还有以下恒温转变类型: ( )",[40,41,42,43],"共析转变","包析转变","熔晶转变","同素异构转变",[],[],1,{"id":48,"source":5,"question":49,"options":50,"answer":55,"related":56,"type":24,"origin":25,"createTime":26},34807808,"若A或B组元形成共晶相图,下列说法正确的是:( )",[51,52,53,54],"形成共晶组织的合金一定是共晶合金","共晶点的温度通常高于组元A或B的熔点","共晶点附近成分的合金通常具有较好的铸造性能","共晶反应结束后仍可能有液相剩余",[],[],{"id":58,"source":5,"question":59,"options":60,"answer":65,"related":66,"type":24,"origin":25,"createTime":26},34807811,"原子的基本结构研究的是()",[61,62,63,64],"原子的形貌","原子的组成和构型","原子核与电子","电子云",[],[],{"id":68,"source":5,"question":69,"options":70,"answer":75,"related":76,"type":24,"origin":25,"createTime":26},34807812,"下列属于金属键的特征是()",[71,72,73,74],"具有指定的方向性","容易达到饱和","具有固定的配位数","每个原子提供的电子被其它所有原子共享",[],[],{"id":78,"source":5,"question":79,"options":80,"answer":85,"related":86,"type":24,"origin":25,"createTime":26},34807813,"在置换型固溶体中,原子扩散的方式一般为( )",[81,82,83,84],"空位机制","间隙机制","原子互换机制","交换机制",[],[],{"id":88,"source":5,"question":89,"options":90,"answer":95,"related":96,"type":46,"origin":25,"createTime":26},34807818,"扩散根据其扩散方向是否与浓度梯度方向相同可以分为:( )",[91,92,93,94],"上坡扩散","下坡扩散","自扩散","互扩散",[],[],{"id":98,"source":5,"question":99,"options":100,"answer":105,"related":106,"type":24,"origin":25,"createTime":26},34807832,"关于三元相图,下列说法错误的是:( )",[101,102,103,104],"利用液相面投影图可以判断不同成分合金的初生相","利用垂直截面可以判断该截面内成分合金在不同温度的相组成","利用水平截面可以判断对应温度下不同成分合金的组织组成和相组成","利用综合投影图可以分析不同成分合金的平衡冷却过程",[],[],{"id":108,"source":5,"question":109,"options":110,"answer":116,"related":117,"type":46,"origin":25,"createTime":26},34807850,"滑移面和滑移方向通常是原子排列最密集的平面和方向.对于面心立方金属原子排列最密集的面是{111} 共有()个, 原子最密集的方向是[110]共有()个,所以它有()个滑移系",[111,112,113,114,115],"4","3","5","15","12",[],[],{"courseName":119,"courseImg":120,"workName":121,"workId":122,"count":24,"courseId":123},"材料科学基础（西安科技大学）","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcb789fa201070f083af1676130bde6a6.png","材料科学基础（西安科技大学）教程考试","23439325","1000009223"]