Torch versus oven preceramic soldering of a nickel-chromium alloy

John A. Sobieralski; Ernst Schelb; Thomas J. Prihoda

Torch versus oven preceramic soldering of a nickel-chromium alloy

John A. Sobieralski, Ernst Schelb, Thomas J. Prihoda

Pathology

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4 Scopus citations

Abstract

Base metal preceramic solder Joints have been described as unpredictable and inconsistent in tensile strength. Compared to base metal postsoldered joints, presoldering with a gas-oxygen torch produces weaker joints that have increased porosity and voids. This investigation compared the tensile strength of base metal solder joints presoldered with a gas-oxygen torch to that of joints presoldered in a porcelain oven under vacuum. The mean (± SD) solder joint tensile strength was 460.0 (± 99.4) MPafor the ovensoldered and 520.2 (± 37.8) MPa for the torch-soldered specimens. A strong, consistent, void-free preeeramic solder joint was produced between a nickel-chromium base and gold solder by both torch- and oven-presoldering techniques: however, preeeramic soldering with a torch tended to result in a stronger bond.

Original language	English (US)
Pages (from-to)	753-757
Number of pages	5
Journal	Quintessence international
Volume	21
Issue number	9
State	Published - Jan 1 1990

ASJC Scopus subject areas

Dentistry(all)

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Sobieralski, J. A., Schelb, E., & Prihoda, T. J. (1990). Torch versus oven preceramic soldering of a nickel-chromium alloy. Quintessence international, 21(9), 753-757.

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