Temperature Dependence of Elastic Moduli of Inorganic Adhesives with 3 Types of Binders

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  • バインダーの異なる3種類の無機接着剤に関する縦弾性係数の温度依存性
  • バインダー ノ コトナル 3シュルイ ノ ムキ セッチャクザイ ニ カンスル タテ ダンセイ ケイスウ ノ オンド イソンセイ

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In this study, the effect of binder type on the elastic moduli of inorganic adhesives is investigated at elevated temperatures using an impact exciting method for measuring natural frequencies of adhesive bulk specimens with rectangular cross section. The specimens are treated as the Bernoulli-Euler beam and the elastic moduli of the adhesive bulk specimens are obtained by the impact exciting method at temperatures from room temperature to 900 degrees Celsius. To compare with the results for the natural frequencies, the elastic moduli are also measured by the static bend tests at room temperature. The experimental results obtained by the impact exciting method show good agreement with those by the static bending method. An adhesive composed of an aluminum di-hydrogen phosphate binder shows the highest value of longitudinal elastic modulus in the inorganic adhesives of three different binders. The elastic modulus of an adhesive composed of water glass binder remains constant up to 600 degrees Celsius.

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