Abstract Resonance ultrasound spectroscopy (RUS) is a non-destructive technique for evaluating elastic and an-elastic material properties. The frequencies of free vibrations carefully crafted sample are measured, properties can be extracted from this. In one popular application, the determination monocrystal elasticity, results not always reliable. some cases, resonant insensitive to changes in...

The atomic structure and local composition of high quality epitaxial substoichiometric titanium diboride (TiB1.9) thin film, deposited by unbalanced magnetron sputtering, were studied using analytical high-resolution scanning transmission electron microscopy, density functional theory, image simulations. unpaired Ti is pinpointed to inclusion Ti-based stacking faults within a few layers, which ...

The structure changes, microstructure evolution, and mechanical properties during Powder Metallurgy (PM) through High Vacuum Sintering of a Ti-TiH2 matrix reinforced with Titanium Diboride (TiB2) particles were investigated. Composites fabricated at 850, 1100, 1300 °C. strategy for the fabrication process was to use PM route employing titanium hydride (TiH2) reduce consumption Commercially Pure...

Abstract Aluminium LM13 alloy based hybrid particulate composites have been processed by adding boron carbide (B 4 C) and titanium diboride (TiB 2 ) particles. The wt% of is varied as 0, 3, 6, 9, 12, 15 a constant 3 used to prepare the composites. Stir cast route fabricate microstructures castings are examined using computer aided image analyzer. Vicker hardness, yield strength, ultimate tensil...

The paper studies the thermophysical properties of a Cu-Ti-C-B composite produced by self-propagating high-temperature synthesis (SHS) an initial mixture copper, titanium, boron carbide (B4C), and carbon powders. matrix is supersaturated solid solution titanium in copper lattice with Cu4Ti nanosized particles homogeneously precipitated under cooling. microhardness 450 HV 0.1. Particles (TiC) di...

ELECTROLESS DEPOSITION OF SUPERCONDUCTING MAGNESIUM DIBORIDETHIN FILMS ON VARIOUS SUBSTRATES

Mechanical properties and microstructure were compared for zirconium diboride two solid solutions containing 3 6 at% tantalum diboride. X-ray diffraction indicated that the ceramics nearly phase-pure dissolved into ZrB2 lattice to form (Zr,Ta)B2 solutions. Microstructural analysis samples achieved full relative density with average grain sizes ranged from 3−5 μm. The three compositions had simi...