Overview of 70nm nano WS2 tungsten disulfide powder
Tungsten is a metallic element with the element symbol W and atomic number 74. It is located in the VIB group of the sixth period of the periodic table of elements. In nature, tungsten mainly exists in the form of hexavalent cations. Its ionic radius is small, it has strong polarization ability, and it is easy to form complex anions.
When preparing pure tungsten or tungsten alloy, the main methods include powder metallurgy, smelting (including electron beam melting, vacuum melting, plasma beam melting) and chemical vapor deposition.
Feature of 70nm nano WS2 tungsten disulfide powder
The thermal expansion coefficient of tungsten is very low, only 4.5×10^-6 m/mK, so it has good thermal stability. These properties make tungsten widely used in manufacturing high-temperature components and reliable heat detectors.
( 70nm nano WS2 tungsten disulfide powder)
Parameters of 70nm nano WS2 tungsten disulfide powder
Tungsten disulfide (WS2) is a transition metal dichalcogenide with the chemical formula W-S2. When it comes to 70nm (nanometer) nano-sized WS2 powder, some key parameters you might be interested in include:
1. Particle Size: As mentioned, the particle size is 70 nanometers (70nm). This refers to the diameter of the individual WS2 nanoparticles.
2. Purity: The purity level typically ranges from 95% to 99.9%, depending on the manufacturer’s specifications. High purity ensures minimal impurities for better performance and reliability in various applications.
3. Crystal Structure: WS2 has a hexagonal crystal structure, commonly referred to as the trigonal prismatic structure.
4. Surface Area: Nano-sized particles have a significantly larger surface area per unit mass compared to bulk material. For 70nm WS2, the surface area can range from 30-100 m²/g, which promotes enhanced reactivity and catalytic properties.
5. Morphology: The shape of the particles may vary slightly but can usually be described as platelets or layered structures due to its layered nature.
6. Optical Properties: WS2 is known for its unique optical properties, such as direct bandgap and strong light absorption. In the case of 70nm powder, this may affect its use in optoelectronic applications like solar cells or light-emitting diodes.
7. Thermal Stability: Tungsten disulfide is generally thermally stable, but the specific thermal stability of 70nm particles will depend on the synthesis method and processing conditions.
8. Electrical Conductivity: WS2 is a semiconducting material, with varying electrical conductivity depending on the degree of doping or the number of layers. For undoped 70nm WS2, it is typically p-type.
9. Applications: Common applications for 70nm WS2 powder include electronics (e.g., transistors, sensors), energy storage (e.g., batteries, supercapacitors), and optoelectronics (e.g., photodetectors, solar cells).
Please note that these parameters can vary depending on the supplier and the specific batch. It’s always essential to check with the manufacturer for the most accurate and up-to-date information.
( 70nm nano WS2 tungsten disulfide powder)
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FAQ
Question: What are some common applications for 70nm nano WS2 tungsten disulfide powder?
Answer: 70nm nano WS2 tungsten disulfide powder are widely used in cutting tools, drilling tools, high-speed steel, carbide, electrode materials, lighting equipment, aerospace, nuclear industry and other fields.
Question: What is tungsten alloy?
Answer: Tungsten alloy is an alloy composed of tungsten as a base and other elements added. It has the characteristics of high density, high hardness, good corrosion resistance and thermal stability. It is often used to make radiation shielding materials, counterweights, etc.
Question: Why is tungsten filament used in light bulbs?
Answer: Tungsten wire has a high melting point and excellent electrical conductivity, and can maintain stable luminous performance at high temperatures, so it is often used to make filaments for incandescent light bulbs.
Question: What is the role of the tungsten electrode in TIG welding?
Answer: Tungsten electrode is used as an electrode in tungsten argon arc welding. It has high melting point, high thermal conductivity and high electron emission capability. It can stably generate arc and achieve high-quality welding.
Question: What is 70nm nano WS2 tungsten disulfide powder? What are its uses?
Answer: 70nm nano WS2 tungsten disulfide powder is a compound composed of tungsten and carbon and has extremely high hardness and wear resistance. It is commonly used in the manufacture of cutting tools, drill bits and wear-resistant parts.
Question: What are the applications of tungsten in aerospace?
Answer: Tungsten and its alloys are used in the aerospace field to manufacture rocket engine nozzles, missile structural components, etc. Because of their high temperature resistance and corrosion resistance, they can withstand extreme working environments.
Question: What is the mining and processing process for 70nm nano WS2 tungsten disulfide powder?
Answer: Mining of 70nm nano WS2 tungsten disulfide powder usually involves underground mining or open-pit mining. After the ore is crushed and ground, the tungsten is extracted through chemical or physical methods. The processing process includes steps such as smelting, powder preparation, molding and sintering.
Question: What impact does 70nm nano WS2 tungsten disulfide powder have on the environment?
Answer: Waste water, waste gas and solid waste may be produced during the mining and processing of 70nm nano WS2 tungsten disulfide powder, which will have a certain impact on the environment. Therefore, appropriate environmental protection measures need to be taken to reduce pollution.
Question: How to identify the authenticity of tungsten products?
Answer: The authenticity of tungsten products can be identified by observing the appearance of the product, measuring its physical properties (such as density, hardness), and conducting chemical composition analysis. It is recommended to choose formal channels and reputable brands when purchasing.
( 70nm nano WS2 tungsten disulfide powder)
