中國產 3N 4N 結晶硼顆粒，粒徑 3-5mm 和 5-10mm
產自中國的3N/4N結晶硼顆粒（3-5mm/5-10mm）是重要的工業領域無機功能添加劑。結晶硼是具有菱形二十面體晶體結構的β相元素硼，具有優異的化學惰性、高機械硬度和高熔點。結晶硼呈灰黑色，有顆粒狀和粉末狀兩種形態，廣泛應用於半導體、光學、熱電池和陶瓷粉末材料等行業。
本公司生產的結晶硼粉常規粒徑為15-60μm。結晶硼顆粒的常規粒徑為1-10mm（特殊粒徑可依客戶需求客製），一般依純度分為2N、3N、4N、5N、6N五種規格。
中國產3N 4N結晶硼顆粒（3-5mm 5-10mm）產品索引：
| 分子式： | B |
| CAS | 7440-42-8 |
| 密度 | 2.3 克/立方厘米 |
| 階段 | β-B相 |
| 熔點 | 2300°C |
| 沸點 | 2550°C |
| 莫氏硬度 | ＞9 |
| 相對原子質量 | 10.81 |
| 穩定同位素 | 10B、11B |
| 顏色 | 深灰色，黑色 |
化學成分：
| 化學 | 2N 晶體硼 | 3N 晶體硼 | 4N 晶體硼 | 5N 晶體硼 | 6N 晶體硼 |
| B | ≥99% | ≥99.9% | ≥99.99% | ≥99.999% | ≥99.9999% |
| 鐵 | ≤500 ppm | ≤200 ppm | ≤90 ppm | ≤8 ppm | ≤0.5 ppm |
| 在 | ≤2.5 ppm | ≤0.08 ppm | ≤0.06 ppm | ≤0.02 ppm | ≤0.02 ppm |
| 在 | ≤1 ppm | ≤0.8 ppm | ≤0.3 ppm | ≤0.03 ppm | ≤0.03 ppm |
| 和 | ≤12 ppm | ≤10 ppm | ≤0.1 ppm | ≤0.03 ppm | ≤0.03 ppm |
| Sn | ≤30 ppm | ≤9 ppm | ≤0.1 ppm | ≤0.1 ppm | ≤0.08 ppm |
| 錳 | ≤300 ppm | ≤3 ppm | ≤1.1 ppm | ≤0.1 ppm | ≤0.07 ppm |
| 鉛 | ≤0.08 ppm | ≤0.3 ppm | ≤1.1 ppm | ≤0.08ppm | ≤0.02ppm |
| 那 | / | ≤18 ppm | ≤0.2 ppm | ≤0.1 ppm | ≤0.01 ppm |
| 作為 | / | / | / | ≤0.08ppm | ≤0.01ppm |
| 在 | / | / | / | ≤0.05ppm | ≤0.02ppm |
| 葛 | / | / | / | ≤0.05ppm | ≤0.04ppm |
典型尺寸和包裝：
| 硼含量 | 典型尺寸 | 包裹 |
| 99 | 1-5μm、10-30μm、50-100μm | 1公斤/5公斤裝於真空鋁箔袋中（奈米粉末僅密封，不真空）。 |
| 99.9 | -200目，0-10微米，1-10毫米 | 粉狀：1公斤/5公斤/真空鋁箔袋包裝，
顆粒型：50公克/500公克/1000公克，PP瓶包裝，內含惰性氣體保護。 |
| 99.99 | -200目，1-10毫米 | 50公克/100公克，PP瓶包裝，內充惰性氣體密封。 |
| 99.999 | ||
| 99.9999 |
應用：
1. 晶體硼在核工業的應用：
Crystalline boron plays a crucial role in the nuclear energy field. It can be used as a neutralization control material in nuclear reactors. Boron can compensate for and regulate neutralization reactivity and to facilitate emergency shutdowns. Thus maintains stable reactor operation. Crystalline boron not only has a high neutralization absorption cutoff but also a wide range of neutralization energy absorption, effectively reducing or regulating the neutralization flux generated by nuclear energy. Thereby it ensures the safety of the nuclear energy system.
2. Applications of Crystalline Boron in Semiconductor Manufacturing:
Crystalline boron is also widely used in the semiconductor industry. As a p-type dopant, crystalline boron can be used to modify the conductivity of semiconductor materials. By doping crystalline boron into silicon Ingot, the conductivity properties of silicon can be altered. Then manufacture semiconductor devices with different conductivity types, such as diodes and field-effect transistors. In addition, crystalline boron can also be used as a raw material for growing long-lasting semiconductor single-crystal materials. Boron-doped silicon single crystals can be grown using a melt-blown method for fabricating high-performance semiconductor devices.
99.9% purity crystalline boron powder is used in the production of solar silicon wafers as a substrate dopant for P-type silicon wafers and as a boron emitter diffuser for N-type silicon wafers. High-purity boron powders of 5N and 6N can be used as dopants for P-type semiconductors to alter their conductivity and are used in the production of high-purity silicon wafers.
3. Application of crystalline boron in semiconductor sputtering targets:
3N and 4N crystalline boron particles can be added to functional alloy products to form targets for semiconductor sputtering coating.
4. Applications of Crystalline Boron in Optics:
Crystalline boron also has extensive applications in optics. Due to its excellent nonlinear optical properties, crystalline boron can achieve functions such as light modulation, frequency sweeping, and frequency doubling. Therefore, crystalline boron is widely used in optical devices, including optical modulators, optical frequency combs, and lasers. Furthermore, crystalline boron can also be used as a gain medium in infrared lasers, exhibiting a large emission cutoff and a wide excitation spectrum range.
5. Crystalline Boron in High-Hardness Ceramic Materials:
Crystalline boron can also be used to prepare high-hardness materials, such as boron carbide (B4C) and graphite boron compounds (Bg). Boron carbide is an extremely hard ceramic material with excellent wear resistance and high-temperature resistance, and is therefore widely used in the manufacture of bulletproof armor, hard tools, abrasives, and wear-resistant ceramics. Graphite boron compounds are materials with a graphite-like structure, exhibiting high electrical conductivity and thermal stability, and can be used to prepare high-performance conductive binders, thermally conductive materials, and friction materials.
6. Applications of Crystalline Boron in Thermal Batteries:
Thermal batteries are single-phase thermally activated storage batteries using molten salt as the electrolyte. They have advantages such as small size, light weight, long storage time, maintenance-free operation, rapid and reliable activation, and a wide operating temperature range, and are widely used in the ignition devices of some strategic and conventional weapons. The anode material of a thermal battery plays a decisive role in its capacity, volume, and power output. Thermal battery anode materials have evolved from the initial magnesium-based and calcium-based materials to the current lithium-based materials. For example, Li-B composites possess outstanding advantages such as high energy density, high power output, low polarization, electrochemical potential close to that of pure lithium, and remaining solid at temperatures above 600℃. It is the most promising thermal battery anode material and is gradually being applied in high-end thermal batteries.
7. Applications of Crystalline Boron in the Military Industry:
Crystalline boron can be used to manufacture high-purity boron ceramic ballistic materials, high-purity boron delay agents, high-purity boron welding fluxes, high-purity boron explosives, and high-purity boron fuel-rich and oxygen-depleted rocket propellants.
8. Crystalline boron in alloy manufacturing:
High-purity boron copper alloy, high-purity boron titanium alloy, high-purity boron polycrystalline steel, high-purity boron superhard wear-resistant tools, high-purity boron corrosion-resistant steel plates, high-purity boron nickel alloy, high-purity boron chromium alloy, lithium boron alloy (a novel battery material), boron-magnesium superconducting alloy.
9. Applications of crystalline boron in aerospace:
High-purity crystalline boron powder can be used as a nano-coating powder material. Through sputtering technology, the powder material is coated onto the surface of a substrate, making components wear-resistant, corrosion-resistant, high-temperature resistant, oxidation-resistant, and weather-resistant. This meets the requirements of engines under the extremely harsh service conditions of aerospace and aviation, and can also meet special requirements in optoelectronics and other fields.
