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- The morphology of crack propagation indicate that there is the toughening mechanism of whisker's pull- out and crack deflection. 裂纹进展形态表明,存在晶须拔出及裂纹偏转增韧机制。
- It is concluded that the crack deflection, fiber pull-out and viscoelastic effect of the organic layers are the dominant toughening mechanisms. 贝壳材料主要增韧机制为裂纹偏转和纤维拔出以及有机质的粘弹性作用。
- It turns out that crack closure is the main reason for retardation, and crack tip blunting, crack deflection and strain-induced martensite would reinforce it. 室温蠕变对裂纹扩展产生延滞的原因主要是裂纹闭合,同时裂尖钝化、裂纹偏折及形变诱发马氏体的形成也会起到一定的作用。
- Whisker made bod effect of stree induced transformation toughening but good effect of crack deflecting toughening. 晶须的加入对相变增韧不利 ，而对裂纹弯曲增韧有利。
- Keywords composite ceramics;crack deflection;microcrack;multitoughening; 复相陶瓷;裂纹偏转;微裂纹;协同增韧;
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- The marchers jumped off at the crack of dawn. 行军队伍在破晓时出发了。
- The riot police started to crack down on them. 防暴警察开始对他们采取镇压行动。
- The smallest deflection of the missile could bring disaster. 导弹有极微小的偏斜也可能酿出大祸。
- You'll crack up if you go on working so hard. 你继续这样拚命干下去，身体会吃不消的。
- Have another crack at solving this puzzle. 再试一试把这个难题解决了吧。
- She made a crack about his fatness. 她取笑他肥胖。
- There is a crack in this window. 这扇窗户上有个裂纹。
- She got up at the crack of dawn. 天刚亮她便起床了。
- Mary found knitting a hard nut to crack. 玛丽发现编织并非易事。
- He was the tough guy, the big shot, who gave orders with the crack of a whip. 他是个威风凛凛发号施令的强悍的家伙，是个大人物。
- I'd do anything to see you crack a smile. 为了博得你的一笑，我情愿做任何事。
- Her foot wedged in the narrow crack. 她的脚卡在那狭缝里了。
- Close examination revealed a crack in the vase. 花瓶经仔细检查发现有裂缝。
- It was then a hard nut to crack. 在那时是一桩很棘手的事。
