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首页> 外文期刊>Drug development and industrial pharmacy >Tensile strength and bonding in compacts: a comparison of diametral compression and three-point bending for plastically deforming materials.
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Tensile strength and bonding in compacts: a comparison of diametral compression and three-point bending for plastically deforming materials.

机译：压坯的抗张强度和粘结性：塑性变形材料的径向压缩和三点弯曲的比较。

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摘要

The tensile strength of tablets is frequently used as a measure of the bonding achieved during compaction. Tablets from two plastically deforming materials and one brittle material have been subjected to tensile strength testing using diametral compression and three-point bending. The plastically deforming materials exhibited marked inhomogeneities, with the surfaces of the tablets considerably more compact than the inner material. The results from the two tests were different, with the three-point bending test giving higher results for tensile strength. The rate of change of tensile strength with overall tablet porosity was, however, the same for the two tests. Diametral compression would thus appear to give a reasonable estimate of bonding despite the non-homogenous nature of tablets prepared from plastically deforming materials.
机译：片剂的抗张强度经常被用作压实过程中实现粘合的度量。由两种塑性变形材料和一种脆性材料制成的片剂已使用直径压缩和三点弯曲进行了抗张强度测试。可塑性变形的材料表现出明显的不均匀性，其中片剂的表面比内部材料致密得多。两次测试的结果不同，三点弯曲测试的抗拉强度结果更高。然而，两个试验的抗拉强度随片剂总体孔隙率的变化率相同。尽管由塑性变形材料制成的片剂具有非均质性质，但径向压缩似乎可以给出合理的粘结估计。

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