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A Study on the Thermal Behaviour of Solder Glass

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Abstract

Vitreous solder glasses, such as Mansol #40 and FEG-2002, are commercialized solder glasses, which are compression sealing glasses that can be used to solder materials with expansions between 55-68⊙10-7°C-1, such as Al2O3.

In order to understand and tailor the thermal behaviour of solder glasses, cylindrical-like glasses were first carefully ground with a stainless steel mortar and pestle. Initially, no exothermic or endothermic data were obtained from the DTA/DSC curves except those relating to melting. However, exothermic peaks appeared after the glass samples were re-melted. In this work, kinetic parameters such as the activation energy, and the morphology of the devitrification mechanisms for two kinds of solder glasses were also investigated, using non-isothermal DTA techniques. The activation energies ranged from 220 to 235 kJ mol-1 and the devitrification mechanism parameters were close to 1. This indicates that the devitrification mechanisms of the two kinds of solder glasses involve surface nuclei.

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Lee, JS., Hsu, CK., Lin, LK. et al. A Study on the Thermal Behaviour of Solder Glass. Journal of Thermal Analysis and Calorimetry 56, 131–136 (1999). https://doi.org/10.1023/A:1010103912714

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  • DOI: https://doi.org/10.1023/A:1010103912714

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