冶金物理化学课后习题解答

2014.10.142021/6/2712021/6/2722021/6/2732021/6/2742021/6/2752021/6/2762021/6/2772021/6/2782021/6/2792021/6/27102021/6/27112021/6/27122021/6/27132021/6/27142021/6/27152021/6/27162021/6/27172021/6/27182021/6/27192021/6/27202021/6/27212021/6/27222021/6/27232021/6/27242021/6/27252021/6/27262021/6/27272021/6/27282021/6/27292021/6/27302021/6/27312021/6/27322021/6/27332021/6/27342021/6/27352021/6/27362021/6/27372021/6/27382021/6/27392021/6/27402021/6/27412021/6/27422021/6/27432021/6/27442021/6/27452021/6/27462021/6/27472021/6/27482021/6/27492021/6/27502021/6/27512021/6/27522021/6/27532021/6/27542021/6/27552021/6/27562021/6/27572021/6/27582021/6/27592021/6/27602021/6/27612021/6/27622021/6/27632021/6/27642021/6/27652021/6/27662021/6/27672021/6/27682021/6/2769相图正误的判定2021/6/2770相界线构筑规则：在二元系中，单相区与两相区邻接的界线延长线必须进入两相区，不能进入单相区。或者说，单相区两条边界线的交角小于180°。相区邻接规则的三个推论：1）两个单相区相毗邻只能是一个点，且为极点；2）两个两相区不能直接毗邻，或被单相区隔开或被零变线隔开；3）单相区与零变线只能相交于特殊组成的点，两个零变线必然被它们所共有的两个两相区分开。2021/6/27712021/6/2772L1+L2=βL=β+γL+β=αα1+α2=S1α=1’+S1α=S1+β说明：物质1共有三种晶型转变，虚线为1和1’的晶型转变线。2021/6/27732021/6/2774重心规则平行线2021/6/27752021/6/27762021/6/27772021/6/27782021/6/27792021/6/27802021/6/27812021/6/27822021/6/27832021/6/27842021/6/27852021/6/27862021/6/27872021/6/27882021/6/27892021/6/2790思考5-1什么是稳态和准稳态？说明它们的主要特征。2021/6/2791思考5-2是说明阿累尼乌斯公式中指前因子与活化能的物理意义。2021/6/27922021/6/27932021/6/27942021/6/27952021/6/27962021/6/27972021/6/27982021/6/27992021/6/27100思考6-5是说明有效边界层理论的要点。2021/6/27101推导菲克第二定律（一维扩散）2021/6/271022021/6/271032021/6/271042021/6/271052021/6/271062021/6/271072021/6/271082021/6/271092021/6/271102021/6/271112021/6/271122021/6/271132021/6/271142021/6/271152021/6/271162021/6/271172021/6/271182021/6/271192021/6/271202021/6/271212021/6/271222021/6/271232021/6/271242021/6/271252021/6/271262021/6/271272021/6/271287-1稳态法如何处理气-固反应动力学问题的？使各步骤的速率相等，且等于总的反应速率。此时，各步骤的阻力都要考虑。2021/6/271297-2未反应核模型有哪些基本假设？1）固体反应物B是致密的或者无孔隙的；2）反应发生在气-固相的界面上，即具有界面化学反应特征。2021/6/271307-3由外扩散、界面化学反应、内扩散控制的气-固反应

各有什么动力学特点？2021/6/271312021/6/271327-4高温冶金气-液反应有什么共同的动力学特征？2021/6/271337-5试说明气泡冶金去除钢液中气体及非金属夹