نتایج جستجو برای: tib2
تعداد نتایج: 642 فیلتر نتایج به سال:
Low-temperature oxidation of metal borides particles energetic compounds conglomerates have been studied via thermogravimetry method. By activity can be arranged in the following series TiB2, ZnB2, AlB2, B. Experiment showed change law temperature dependence from logarithmic to parabolic.
Squeeze casting was used to prepare aluminium alloy-6061/titanium diboride (TiB2) create a composite with varied TiB2 quantities. The composite's metallographic structure, tensile strength, and hardness have been explored. strength of produced metal matrix composites increased when particle from 5 10 vol.%. This study uses electrical discharge machining (EDM) investigate the output response too...
In the present work, abrasive and erosive wear of wear-resistant composite coatings with a complex structure different phase compositions deposited on titanium surfaces was studied. The were obtained by electrospark deposition (ESD) using two types hard-alloy compositions: WC–TiB2–B4C–Co–Ni–Cr–Si–B TiB2–TiAl reinforced dispersed nanoparticles ZrO2 NbC. influence ESD process parameters roughness...
Development of aluminium composites by stircasting technique is an effective method for fabrication better quality MMCs. Stircasting one the most commonly accepted techniques. In this research work, Al6061 / TiB2+CeO2 hybrid MMCs have been fabricated with varying wt. % TiB2 (2.5%, 5%, 7.5% and 10%) particulates constant 5% CeO2 particulates. The monolithic alloy composite were hot-rolled at a t...
In this work, crack-free samples with a relative density of 99.5 ± 0.1% were produced from gas-atomized Al–Cu–Ag–Mg–Ti–TiB2 powder via laser powder-bed fusion. The homogeneous equiaxed microstructure without preferred grain orientation shows the ?-Al grains’ mean size to be 0.64 ?m 0.26 TiB2 particles sizes several tens nm up 1.5 observed in as-built component. Small approx. 200 are located wit...
To prepare a self-lubricating ceramic tool with excellent mechanical properties and crack healing ability, the [email protected]2O3 solid lubricant core-shell structure was prepared by heterogeneous nucleation method, added into Al2O3/TiC matrix together TiB2. Examination of micro-morphology phase composition found that surface h-BN coated Al(OH)3 at first, after calcination 1200 °C, dense unif...
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