The World Bank expects global economic growth to slow significantly, from 5.5% in 2021 to 4.1% in 2022 and further to 3.2% in 2023. Growth in East Asia and the Pacific is expected to slow to 5.1 percent in 2022, reflecting the impact of China's econo
If youre tired of long delivery times, Samsung is now teaming up with Best Buy to offer a Get It Today pickup service. This lets you buy from Samsungs online store and pick it up for free at your local Best Buy within a few hours. Selected S
Boron carbide has the characteristics of low density, high strength, good temperature stability and good chemical stability. It is used in wear-resistant materials, ceramic reinforced phases, especially in light armor and reactor neutron abs
Environmentally benign synthesis of Graphite at low temperatures is a great challenge without transition metal catalysts. Herein, we report a green and efficient approach to synthesizing Graphite from carbon dioxide at ultralow temperatures without transition metal catalysts. Carbon dioxide is converted into graphite submicroflakes in the second timescale via reacting with lithium aluminum hydride as the mixture of carbon dioxide and lithium aluminum hydride is heated to as low as 126 °C. Gas pr
What is Wurtzite Boron Nitride?Wurtzite Boron Nitride (wBN) is a wide band gap BN polymorph with unique mechanical properties such as hardness and stiffness. Initially synthesized in 1963 by transforming hexagonal BN (hBN) under high temperature and pressure conditions, wBN can now be stabilized at atmospheric pressure to obtain high-quality samples. Our first-principles study investigates the electronic, vibrational, and optical properties of wBN across a broad range of pressures. We account fo
What's VN powder? Vanadium carbonide has 2 crystal structures. First, V3N is a hexagonal crystal structure. This crystal structure exhibits an extreme high hardness and microhardness. Unmeasurable melting points. Second, VN is a density 613.95. A face-centered cubic crystal crystal structure gives it a microhardness and melting point of approximately 1520HV. Each has high wear resistance. Take the example of the construction industry. The vanadium/nitrogen alloying technique produces a three-
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