Basic physical properties of cubic boron arsenide

determination of some physical and mechanical properties red bean

چکیده: در این تحقیق، برخی خواص فیزیکی و مکانیکی لوبیا قرمز به-صورت تابعی از محتوی رطوبت بررسی شد. نتایج نشان داد که رطوبت بر خواص فیزیکی لوبیا قرمز شامل طول، عرض، ضخامت، قطر متوسط هندسی، قطر متوسط حسابی، سطح تصویر شده، حجم، چگالی توده، تخلخل، وزن هزار دانه و زاویه ی استقرار استاتیکی در سطح احتمال 1 درصد اثر معنی داری دارد. به طوری که با افزایش رطوبت از 54/7 به 12 درصد بر پایه خشک طول، عرض، ضخام...

Synthesis and characterization of a p-type boron arsenide photoelectrode.

A p-type boron arsenide photoelectrode was prepared from a material consisting of a thin layer of boron arsenide on a boron substrate. The structure of the material was identified using X-ray diffraction and scanning electron microscopy, and the surface composition was determined by means of X-ray photoelectron spectroscopy. The electrode was found to be photoactive under both visible light and...

Growth and physical properties of epitaxial metastable cubic TaN„001..

We report the growth of epitaxial metastable B1 NaCl structure TaN~001! layers. The films were grown on MgO~001! at 600 °C by ultrahigh vacuum reactive magnetron sputter deposition in mixed Ar/N2 discharges maintained at 20 mTorr ~2.67 Pa!. X-ray diffraction and transmission electron microscopy results establish the epitaxial relationship as cube-on-cube, (001)TaNi(001)MgO with @100#TaNi@100#Mg...

High Quality Substrates for Boron Arsenide Semiconductor Devices

Pnma-BN: Another Boron Nitride Polymorph with Interesting Physical Properties

Structural, mechanical, electronic properties, and stability of boron nitride (BN) in Pnma structure were studied using first-principles calculations by Cambridge Serial Total Energy Package (CASTEP) plane-wave code, and the calculations were performed with the local density approximation and generalized gradient approximation in the form of Perdew-Burke-Ernzerhof. This BN, called Pnma-BN, cont...