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Silicon Nitride is an inorganic compound with the chemical formula Si₃N₄. It is insoluble in water, with a molecular weight of 140.283 and appears gray or grayish-white. It belongs to a class of high-temperature insoluble compounds, exhibiting no melting point and strong resistance to high-temperature creep. Its solubility is limited to hydrofluoric acid and hot phosphoric acid, as it does not react with other inorganic acids, demonstrating high corrosion resistance. Silicon nitride (Si₃N₄) exists in three crystallographic forms: α, β, and γ phases. The α and β phases are the most common forms of Si₃N₄ and can be synthesized at atmospheric pressure. The γ phase can only be obtained under conditions of high pressure and high temperature, with a hardness that can reach 35 GPa.

In the context of the global energy transition and the accelerating wave of electrification, Silicon Carbide (SiC), as a core representative of third-generation semiconductors, is strategically advancing from material innovation to industrial restructuring. Its outstanding properties of high voltage resistance, high-temperature durability, and low loss facilitate rapid penetration into sectors such as electric vehicles, high-end power electronics, aerospace, and data communications. By 2024, the global SiC market is expected to reach $2.944 billion, and it is projected to exceed $14.2 billion by 2029, with a compound annual growth rate of 34.9% over five years, making it one of the strongest growth areas within the wide bandgap semiconductor market. This report conducts a systematic analysis of market structure, industry chain, regional evolution, customer behavior, and strategic opportunities, aiming to provide forward-looking insights and empirical support for corporate strategies, capital investments, and policy-making.

Alumina has long played an important role in the national economy as a raw material for aluminum products and as a supplementary material in traditional industries such as petrochemicals and machinery. Currently, with the continuous emergence and rapid development of emerging industries such as communication, new energy, and semiconductors, the demand for high-performance new materials has become increasingly strong. Certain high-end alumina products have gained traction in this context, especially in the trillion-dollar markets of new energy and semiconductors, where alumina has become a critical foundational material.

High-purity sputtering targets primarily refer to metallic or non-metallic targets with a purity of 99.9% to 99.9999% (3N to 6N), used in the physical vapor deposition (PVD) process for the manufacturing of electronic components. They are essential materials for the fabrication of integrated circuit chips, flat panel displays, photovoltaic solar cells, and other electronic films.

In today's rapidly advancing technological era, industries ranging from aerospace to electronic communications, and from energy to healthcare, are in search of materials with superior performance and broader applications. Among these, one material has garnered significant attention due to its unique properties, and that is tungsten powder.

SiC Ceramics Are characterized by high hardness, high strength, high temperature resistance, and corrosion resistance, and are widely used in fields such as aerospace, petrochemicals, and integrated circuits. Given that most silicon carbide products are high value-added products with broad market prospects, they have received significant attention from many countries and have continually been a focus of research in the materials science field.

Nanotechnology is a field that involves the manipulation of materials at the nanoscale, including the scientific principles employed in this process and the new material properties and development prospects discovered at this scale. Nanotechnology has been applied to various aspects of medicine, including drug delivery, tumor diagnosis and treatment, imaging, and antibacterial agents. 

Would you believe that after its initial discovery, silicon nitride was actually used merely as a "fertilizer"? People believed that combining silicon with nitrogen and spreading silicon nitride on fields could release nitrogen to nourish plants.

In 1781, German chemist Carl Wilhelm Scheele discovered a tungsten-containing ore and named it "tungsten," derived from the Swedish term meaning "heavy stone." Later, in 1783, Swedish chemist Peter Woulfe identified a new element within this ore and adopted the Latinized form "tungsten" from "tung sten." Thus, the metal's name traces back to this Latin origin.

Ceramic material is a material widely used in various industrial fields, with excellent mechanical properties, corrosion resistance and high temperature resistance. This article will look at several common ceramic materials, including silicon carbide, boron carbide, alumina, and boron nitride.