Tag: characteristic

Hafnium diboride applications and characteristics

What is hafnium Diboride Powder? Hafnium Diboride is an ultra-high-temperature ceramic that is made from hafnium, boron. It is an unusual ceramic with high heat conductivity and conduction. It is a metallic gray color. Hafnium dioxide has a hexagonal structure and a density 10.5 g/cc. It can melt at approximately 3,250 degrees Celsius. Hafnium diboride’s resistance to oxidation is affected by temperature and pressure. At 1500°C and 1atm, the protective oxide layer forms. HfB2’s antioxidant activity decreases when temperatures rise above 1600degC and pressure drops below 1atm. In these conditions, B2O3, one of the oxidation products from HfB2, boils at a higher temperature than B2O3, creating a protective layer of oxide.

Uses of hafnium diboride powder
Because of its strength and thermal characteristics, HfB2 can be used in ultra high-speed reentry aircrafts, such as an INTERCONTINENTAL missile heat shield or pneumatic front. HfB2 has an aerodynamic form and doesn’t ablate upon reentry, unlike polymers and composites.
Hafnium Diboride is being considered as a new material to be used in nuclear reactor control rods.
It is also being investigated as a diffusion shield for microchips. The barrier can be less that 7 nanometers thick if synthesized properly.

Hafnium diboride powder characteristics :
Hafnium Diboride is an ultra-high temperature ceramic that’s made from hafnium, boron. It melts at approximately 3,250 degrees Celsius. It is a unique ceramic with high heat conduction, electrical conductivity, and similar properties to titanium and zirconium diboride. It is a gray, metallic substance. Hafnium Diboride has hexagonal crystal structures with a molar density of 10.5g/cc and a mass of 200.11g/mol.
How is hafnium Diboride powder manufactured?
These are the steps that enable you to realize combustion synthesis for high purity hafnium Diboride Powder.
1. Mix base ingredients and thinner. Mix base ingredients with thinner.
2. Mix dry with wet
3. The graphite powder should be evenly mixed. The closed pressure vessel is then cooled with circulating waters. The reaction is performed under 0-5 mpa pressure, or in a vacuum protected by an atmosphere. By self-propagating burning, raw materials can be transformed into products.
4. Cool the product. It is a mixture between hafnium dioxide and magnesium oxide. To obtain hafnium Diboride powder, magnesium oxide must be removed by picking.
Hafnium diboride powder supplier
(aka. Technology Co. Ltd. (aka. Our company has developed a number of materials. Our company’s Hafnium Diboride is high in purity, fine particle size and has low impurities. Send us an e-mail or click on this link Needed products Send an inquiry

What is hafnium Diboride Powder? Hafnium Diboride is an ultra-high-temperature ceramic that is made from hafnium, boron. It is an unusual ceramic with high heat […]

What are Aluminum Nitride Characteristics?

History of Aluminum Nitride Aluminium nitride A type of ceramic material, has a very high comprehensive performance and can be traced back over 100 years. F. Birgeler discovered it in 1862. A. Gutter synthesized it by J.W. The first use of mallets was in 1877. However, it didn’t find any practical application over the next 100 years. It was used only as a fertilizer, but as a nitrogen fixing agent.

Aluminum nitride can be sintered because it is a covalent chemical with a low self–diffusion coefficient. Aluminum nitride ceramics first became commercially viable in the 1950s. They were used as refractory materials during the smelting process of aluminum, pure iron, and aluminum alloys. The technology used to prepare aluminum nitride is becoming more sophisticated and the application range has expanded. This has been evident since the 1970s. The 21st century has seen rapid developments in microelectronics technology. Electronic machine and electronic parts are moving towards miniaturization and light-duty integration. They also have a development direction such as high reliability, high power output, more complex heat dissipation devices to the substrate and packaging materials that are more requested, which will further encourage the growth of the aluminum industry.

Aluminum Nitride Characteristics
Structure
Aluminum nitride, also known as AlN, is a hexagonal wurtzite-covalent bond compound that has the following lattice parameters: A =3.114, and C =4.986. Pure aluminum Nitride is a blue-white semiconductor material with a wide bandgap of iii to vwide.

Performance
Aluminum nitride is far more efficient than alumina because it has superior performance in terms of strength, volume resistance, insulation and pressure resistance.

Aluminium Nitride Thermal Conductivity Method
One of the many important properties of aluminum Nitride is its high thermal conductivity. There has been a lot of research into the thermal conductivity mechanism in aluminum nitride. A theoretical system that is almost perfect has been developed. The principal mechanism of heat transfer through the lattice is heat vibration or lattice vibrating, which is, by thermal wave or lattice waves. Quantum mechanics shows that lattice wave can be considered the motion of a particle (the phonon), according to quantum mechanics. Wave-particle duality can also be found in thermal waves. Thermal phonons transmit heat through mutual restriction of and coordination among vibrations between structural elements (atoms or ions) If the crystal has a non-elastic structure, heat can flow freely from one end to the other without interference or scattering. The thermal conductivity can even reach very high levels. The main controls on thermal conductivity are crystal defects and the phonon scattering.

AlN has a theoretical thermal conductivity value of 320W*m-1*K-1. However, the thermal conductivity actually measured by AlN is 200W*m-1*k-1 because of impurities and defects. This is because the crystal has a variety of structural elements that cannot be distributed uniformly and the current-carrying, phonons are constantly scattered.

Aluminum Nitride Price
Price is affected by many factors, including supply and demand, market trends, economic activity and unexpected events.
Send us your inquiry if you’re looking for the latest Price. (brad@ihpa.net)

Aluminum Nitride Supplier
Technology Co. Ltd. is a trusted global supplier of chemical material and manufacturer. They have over 12 years experience in producing super-high-quality chemicals, Nanomaterials, such as silicon powder.
We are happy to assist you in your search for high-quality aluminum Nitride. (brad@ihpa.net)

History of Aluminum Nitride Aluminium nitride A type of ceramic material, has a very high comprehensive performance and can be traced back over 100 years. […]

What are the Characteristics of Nitinol?

Nickelol is an alloy of nickel and titanium that has about 50% nickel. It was discovered in 1960, but it would take years for Nitinol to make it to the market. This is due to the difficulty in processing and manufacturing. Many of Nitinol’s applications have been realized in the middle of the 1990s. This is due to its shape-memory properties and superelasticity. Nitinol has shape memory, which means it can be transformed into a new form at a temperature below the normal body temperature and then return back to its original form if heated above the transition temperature.

Characteristics & Properties of Nitinol
Nitinol has the unique ability to adapt to particular strains and is compatible to the human body. Therefore, it has many uses in the medical field. Nitinol displays a cubic crystal structure, known as austenite (also called the parent phase). It spontaneously becomes martensite at lower temperatures. The temperature at where austenite turns to martensite, also known as the transition temp, is commonly called the Ms temperature. The temperature that martensite fully forms is known as Mf temperature. These two features of Nitinol’s structural structure — shape-memory and superelasticity — allow it to show a reversible reaction to applied stress. This is directly caused by the phase change between the martensitic and austenitic phases.

These two aspects are critical to Nitinol’s properties. First, the transition can be reversed. This means that heating above transition temperature will return the crystal structure back to the simpler austenite. The second important point is that two-way conversion occurs instantly.

Martensite crystals have the unique ability to undergo finite atomic bond breaking without causing any damage. This type of deformation is called twins and involves the rearrangement atomic planes without causing any permanent deformation. This can withstand around 6-8% strain.

Martensite can be converted to austenite using heating. The original austenite structure will still be intact, regardless of the deformation of the martensite phases. This is why the term “shape memories” refers to how the high-temperature austenite phases are “remembered”, even though they deform severely at lower temperatures.

The Nitinol medical devices, such as a Stent, can be made at the body temperature, deformed at another temperature, folded smaller, and then inserted into an artery. Once it is at normal temperature, it will return to its original size. The device will also fully recover after being bent to extremely high strain rates (upto 7%).

Super-elastic effect of Nitinol Wire
This “hyperelasticity” allows you to use a Nitinol-wire device that has been bent, shaped or placed in your body. The tube can accommodate small grasping or biopsy tools that are smaller than those made from standard alloys. Nitinol is a lightweight alloy with unique properties that makes it ideal for biomedical applications. This includes heart valve tools, stents (stents), nails, bone anchors or complex diaphragm defects devices.

But heat-treating Nitinol to achieve the desired transition temperature is delicate. Temperature and age control the precipitation process of various Ni-rich phases. This is done to regulate the nickel content within the lattice. The nickel matrix is depleted, and aging increases the temperature transition. It is crucial to combine heat treatment with cold work in order to control the properties and alloy Nitinol.

NiTi Alloy powder price
Price is affected by many factors, including supply and demand, market trends, economic activity and unexpected events.
Send us an inquiry if you’re looking for the most recent Niti alloy powder cost. (brad@ihpa.net)

Niti Alloy Powder Supplier
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemical materials. We have more than 12 years experience in producing super high-quality chemicals.
Send us an inquiry if you’re looking for Ni-Ti powder of high quality. (brad@ihpa.net)

Nickelol is an alloy of nickel and titanium that has about 50% nickel. It was discovered in 1960, but it would take years for Nitinol […]

Recent articles