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[求助]
求大神翻譯一小段英語、急急急!!!
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The investigation of an AZT ceramic in comparison with a pure alumina ceramic by means of wedge splitting tests with in-situ crack growth observation was the topic of previous work in cooperation with “Forschungszentrum Juelich”, Germany.7 Growth and opening displacement of the main crack was accompanied in the AZT ceramic by pronounced microcracking, branching and bridging processes. The thermal shock parameter R’’’’, which is a measure of the resistance against crack propagation under thermal shock loading8, was determined. The values predicted a higher thermal shock resistance of the AZT ceramic compared with pure Al2O3.7 As described in another previous publication9, different thermal expansion coefficients of the phases formed during sintering contribute to the high resistance of AZT ceramics against thermal shock. The focus of the present paper is on Al2O3-rich magnesium aluminate spinel, a widely used refractory material, which was modified by the addition of aluminum titanate. Initially, typical results of thermal shock experiments on AZT ceramic are shown for the purpose of comparison. |
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cmds1907
鐵桿木蟲 (著名寫手)
- 翻譯EPI: 73
- 應助: 72 (初中生)
- 金幣: 10669.3
- 散金: 3999
- 紅花: 17
- 帖子: 2100
- 在線: 530小時
- 蟲號: 3346786
- 注冊: 2014-07-31
- 專業(yè): 有機分子功能材料化學
【答案】應助回帖
★ ★ ★ ★ ★ ★ ★ ★
根本停不下: 金幣+8, 翻譯EPI+1, ★有幫助 2014-09-14 10:03:25
根本停不下: 金幣+8, 翻譯EPI+1, ★有幫助 2014-09-14 10:03:25
| 一個與純氧化鋁陶瓷相比的AZT陶瓷的研究，借助于具有原位觀察裂紋增長的楔入劈拉試驗，這是與“德國尤里希研究中心”合作的以前工作的主題【7】。主要裂紋的增長和張開(開口)位移相伴于AZT陶瓷的明顯微裂紋，裂紋分支和搭橋（銜接）過程。確定了熱震(沖擊)參數(shù)R”“，這是一個衡量熱沖擊(震)載荷下的（抵）抗裂紋擴展�！�8】AZT陶瓷抗熱震性的預測值相比于純Al2O3的更高�！�7】如另一個前期文獻【9】所描述，燒結(jié)過程中所形成相的不同熱膨脹系數(shù)有助于AZT陶瓷耐熱沖擊的高阻抗。本文的重點是有關(guān)富Al2O3鋁酸鎂尖晶石，一種廣泛使用的耐火材料，它通過添加鈦酸鋁而改性。首先，展示以比較為目的的AZT陶瓷的熱沖擊實驗典型結(jié)果(值)。 |
2樓2014-09-14 09:51:53
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