- STATE OF THE ART OF TITANIUM-BASED BRAZING FILLER METALS
by Alexander Shapiro & Anatol Rabinkin
An overview of new brazing materials demonstrates potential aerospace applications...
Read more at: Welding Journal, 2003. Vol. 82(10), pp.36-43.
Designing high-entropy brazing alloys for joining titanium and refractory metals
by Alexander E. Shapiro**
Standard titanium filler metals for vacuum brazing do not satisfy strength and
temperature requirements for new applications such as electro-chemical power sources, reactors,
or spacecraft devices. Uncontrolled, multiphase microstructures formed in brazed joints made by
these filler metal limit optimization of their mechanical properties or corrosion resistance.
This paper discusses a design approach to formulate new titanium brazing alloys that may
obtain a uniform single- or two-phase microstructure...
PROPERTIES AND APPLICATIONS OF Cu-BASED SILVER FREE BRAZING FILLER METALS MADE BY RAPID SOLIDIFICATION TECHNIQUE
by Igor N. Pashkov*, Inna I. Ilina*, & Alexander E. Shapiro**
Technical and commercial interest in silver-free brazing filler metals (SFBM) is directly related to the fact that they are at least twice cheaper than silver filler metals...
SOLDERING SILVER TO ALUMINUM AND COPPER FOR CRYOGENIC APPLICATIONS
Leonid A. Shapiro
Soldering for conditions where thermal cycling is
present, e.g., electronics cooling...
Read more at...:
Welding Journal, 2009. Vol. 88(10), pp.43-47.
- HEAT-RESISTANT BRAZING FILLER METALS FOR JOINING TITANIUM ALUMINIDE AND TITANIUM ALLOYS
Alexander E. Shapiro* & Eugene Y. Ivanov**
Titanium alloys and titanium aluminides are being considered as key materials for the manufacture of lightweight compressors and turbines in modern aircraft and rocket engines...
- CEMENTED CARBIDES AND CERMETS
A. E. Shapiro Titanium Brazing, Incorporated D. W. Bucholz Conforma Clad,
The materials commonly known as cemented carbides or hard alloys are actually a
wide variety of metal matrix composites in which one or more types of hard
carbide... Read more at: AWS BRAZING HANDBOOK, 5th Ed., 2007.
Chapter 23. p.410-448.
- GRAPHITE AND CARBON-CARBON COMPOSITES
Alexander. E. Shapiro Titanium Brazing, Inc.
In brazing consideration,
graphite and carbon-carbon (C/C) composites are somewhat similar to structural
ceramics and ceramic-matrix composites. However, although both types of material
have high melting points and relatively low coefficients of thermal expansion,
structural ceramics are compatible with oxidizing environments, while the
carbon-based materials typically begin oxidizing at temperatures ranging from
842°F to 1200°F (450°C to 650°C), depending on the perfection of the carbon
structure and its purity... Read more at: AWS BRAZING HANDBOOK,
5th Ed., 2007. Chapter 21. p.381-408.
By Alexander. E.
Shapiro Titanium Brazing, Inc.
The hardest material known, diamonds find
numerous applications in industry, especially in the manufacture of ultrahard
abrasives, metal machining tools, and drilling tools for oil and gas wells....
Read more at: AWS BRAZING HANDBOOK, 5th Ed., 2007. Chapter 36.
- BRAZING OF TITANIUM AT TEMPERATURES BELOW 800°C: REVIEW AND PROSPECTIVE APPLICATIONS
by Alexander E. Shapiro* & Yury A. Flom**
Brazing temperature of conventional Ti-Cu-Ni and Ti-Zr-Cu-Ni filler metals is usually above the â-transus temperature of titanium base metals that hurts mechanical properties of the base metal. Brazing titanium below the â-transus temperature using the Ag-based and Al-based filler metals of various compositions has been evaluated in the review...
- HEALING OF MAGNESIUM CASTING DEFECTS BY FLUX-FREE SOLDERING WITH ZN-BASED SOLDERS
by Alexander E. Shapiro & Eugene Y. Ivanov
Often, magnesium die castings have such defects as local porosity, short-run, pouring defects, pin-holes, cracks, erosion scabs, not-complete formation of thin walls or profile, and others. Magnesium parts are subjected to phosphate pickling immediately after casting to protect against atmospheric corrosion...
- BRAZING MAGNESIUM ALLOYS AND MAGNESIUM MATRIX COMPOSITES
By Alexander E. Shapiro
Methods, filler metals, and fluxes suitable for brazing of cast and extruded magnesium-based alloys
were developed in the 1960s and 1970s. Since that time, the furnace, torch, and dip brazing processes have been successfully
employed without considerable changes...
Read more at: Welding Journal, 2005. Vol. 84 (10), p.33-43.
- EXPLORING SOLID-STATE SYNTHESIS OF POWDER FILLER METALS FOR VACUUM BRAZING OF TITANIUM ALLOYS
By E. Y. Ivanov, A. E. Shapiro, & M. G. Horne
Titanium brazing filler metals of Ti-Zr-Cu-Ni and Ti-Cu-Ni systems can be
successfully manufactured by mechano-chemical synthesis in the solid state... Read more at:
Welding Journal, 2006. Vol. 85(9), pp.196-s-199-s.