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The role of mechanical, chemical and physical bonds in metal-ceramic bond strength

Czepułkowska W., Wołowiec-Korecka E., Klimek L.

Archives of Materials Science and Engineering

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2018

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Vol. 92, nr 1

5--14

EN

Purpose: A review regarding the mechanisms of metal-ceramic join is presented. Design/methodology/approach: The impact of the air-abrasion parameters on the mechanical bond strength of the ceramic crowns was discussed. The presence of opaque on the chemical bond was analysed. Research of the influence of the difference in the coefficient of thermal expansion values on the metal-ceramic bond was included. The methods of testing the bond strength were analysed. Findings: The metal substructure-dental ceramic bond strength is affected by all types of bond. In bond strength, 3-point bending test and shear test are mainly used. Created samples simulate the ceramic crowns veneered on one side. The role of physical bond on ceramic crowns veneered around metal substructure is unknown. Research limitations/implications: The prosthetic restorations with the ceramic surrounding whole the metal substructure are commonly used. The impact of shrinkage in the cylindrical deposition of the ceramic on metal substructure should be analysed. Practical implications: Numerical analysis and FEM simulation can be helpful in the analysis of the physical bond between the metal substructure and the dental ceramic around it. Originality/value: The impact of the type of the bond to metal-ceramic bond strength is presented, taking into account the cognitive gap in the influence of the coefficient of thermal expansion on the cylindrical placement of ceramic on the substructure.

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Ocena wytrzymałości zmęczeniowej połączeń końców przędz wełnianych czesankowych Sirospun, łączonych techniką pneumatycznego splatania oraz mechanicznego wiązania. Cz. III

Drobina R., Lewandowski S., Głowacka E., Stasicka K.

Przegląd Włókienniczy - Włókno, Odzież, Skóra

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2015

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nr 2

29--31

EN

They made the technological identification of the working parameters of the splicing Jointair device type of 927L of the MESDAN company. The conducted identification allowed for selection of the steering of the splicing device enabling to make technologically useful connections. They stated that steering of length of yarn ends subjected to the join and the time of splicing were factors affecting for strength properties of Sirospun yarns. In the present article they decided to verify the proposed statistical model. The verification of introduced model will enable to estimate the technological usefulness. Technologically useful connections will be subjected to endurance examinations.

3

Ocena wytrzymałości zmęczeniowej połączeń końców przędz wełnianych czesankowych Sirospun, łączonych techniką pneumatycznego splatania oraz mechanicznego wiązania. Cz. II

Drobina R., Lewandowski S., Głowacka E., Stasicka K.

Przegląd Włókienniczy - Włókno, Odzież, Skóra

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2015

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nr 1

27--30

EN

They made the technological identification of the working parameters of the splicing Jointair device type of 927L of the MESDAN company. The conducted identification allowed for selection of the steering of the splicing device enabling to make technologically useful connections. They stated that steering of length of yarn ends subjected to the join and the time of splicing were factors affecting for strength properties of Sirospun yarns. In the present article they decided to verify the proposed statistical model. The verification of introduced model will enable to estimate the technological usefulness. Technologically useful connections will be subjected to endurance examinations.