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Yttrium Boride

Updated: 2026-07-31

Overview

Yttrium boride (YB) is an inorganic compound composed of yttrium and boron. It is classified as a refractory material due to its exceptional resistance to high temperatures and chemical corrosion. YB is commonly synthesized through high-temperature reactions between yttrium oxide and boron or via arc melting. Its unique combination of properties, including high hardness, thermal stability, and electrical conductivity, makes it suitable for demanding industrial applications. The compound is typically available as a gray to black crystalline powder or solid, depending on the synthesis method and intended use.

Physical and Chemical Properties

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Yttrium boride exhibits a high melting point of approximately 2200°C, making it suitable for extreme environments. Its density is around 5.6 g/cm³, and it is insoluble in water and most common solvents. The material is known for its excellent thermal and electrical conductivity, which are advantageous in electronic and high-temperature applications. Chemically, YB is stable under inert conditions but can oxidize at elevated temperatures in the presence of oxygen. It is resistant to many acids and alkalis, though prolonged exposure to strong oxidizing agents should be avoided to prevent degradation.

商家经验真实案例 · 安全可信
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本文通过化学方程式计算,解析煅烧四水合钼酸铵制备氧化钼的质量转换关系,详细说明1g氧化钼所需原料的理论用量及实际影响因素,为实验室制备提供参考。

Main Applications

Yttrium boride is widely used in high-temperature applications, such as furnace linings and thermocouple sheaths, due to its refractory nature. It is also a key component in ceramic composites, where it enhances mechanical strength and thermal stability. In the electronics industry, YB is utilized in the production of conductive ceramics and coatings. Its electrical properties make it suitable for use in electrodes and other components that require durability under harsh conditions. Additionally, YB is explored in aerospace and defense for its potential in lightweight, high-strength materials.

Safety and Storage

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Handling yttrium boride requires precautions to avoid inhalation of fine dust particles, which can irritate the respiratory system. Proper personal protective equipment (PPE), such as gloves, goggles, and masks, should be worn during handling. Storage conditions are critical to maintaining the material's integrity. YB should be kept in a dry, inert environment, preferably under argon or nitrogen, to prevent oxidation. Containers should be tightly sealed and labeled clearly to avoid accidental exposure or contamination.

商家经验真实案例 · 安全可信
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B2B Procurement Guide

When procuring yttrium boride, buyers should prioritize suppliers who provide detailed specifications, including purity levels (commonly 99% or higher) and particle size distribution. These factors significantly influence performance in end-use applications. Bulk purchases often attract discounts, but it's advisable to request samples for quality testing before large-scale orders. Lead times can vary depending on supplier inventory and production schedules, so early engagement with suppliers is recommended for time-sensitive projects.

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