Effect of B2O3 content on crack initiation under Vickers indentation test
Effect of B2O3 content on crack initiation under Vickers indentation test
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DOI：
10.2109/jcersj2.118.792
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发表时间：
2010-09-01
影响因子：
1.1
通讯作者：
Akai, Tomoko
中科院分区：
文献类型：
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作者：
Kato, Yoshinari;Yamazaki, Hiroki;Akai, Tomoko
通过压痕试验，研究了不同含量的B2O3对玻璃抗裂性的影响。SiO_2-B_2O_3-Na_2O三元系统玻璃(SBN系列)和非碱性铝硼硅酸盐玻璃系统(SAB系列)。在SBN系(“SBN1”系列)中用SiO_2替代8203时，抗裂性与密度有关。在密度不随B_2O_3含量变化的SBN系列(“SBN_2”系列)中，抗裂性随B_2O_3含量的增加而降低。另一方面，SAB系列陶瓷的抗裂性随B_2O_3含量的增加而增加，密度基本不变。核磁共振测试结果表明，随着B_2O_3含量的增加，SBN_2系列中的4-取代态硼(B-141)增加，而SAB系列中的3-取代态(B-131)增加。因此，抗裂性随B-131的增加而提高，随B-141的增加而降低。含玻璃的B-131和B-141由于结构不同，对压痕周围残余应力的影响不同，导致抗裂性不同。(C)2010日本陶瓷学会版权所有
Effect of B2O3 content on crack resistance was investigated by indentation tests of glass samples with various compositions of B2O3. The ternary SiO2-B2O3-Na2O glass system (SBN series) and non-alkaline aluminoborosilicate glass system (SAB series). When 8203 is substituted with SiO2 in the SBN system ("SBN1" series), crack resistance has a relationship with density. In a series of the SBN system where density did not change with B2O3 content ("SBN2" series), crack resistance decreased with increasing B2O3 content. On the other hand, crack resistance increased with increasing B2O3 content in the SAB series, where density did not change. According to the results of NMR measurement, boron in 4-cordination state (B-141) increased in the SBN2 series while boron in 3-cordination state (B-131) increased in the SAB series with increasing B2O3 content. Therefore, crack resistance increases with increasing B-131 and decreases with increasing B-141. The difference in structure between B-131 and B-141 containing glasses leads to different effect on residual stress around the indentation, resulting in difference in crack resistance. (C) 2010 The Ceramic Society of Japan All rights reserved