Zirconium Dioxide Powder CAS 1314-23-4

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If we consider zirconium dioxide powder as a common high-temperature resistant ceramic material, we would overlook its peculiar roles as a "phase transformation magician" and a "stress artist" at the microscopic scale. Each particle of this powder is a confined metastable universe, and its unique phase transformation toughening mechanism can be regarded as the ultimate achievement in materials science: At room temperature, the tetragonal crystal lattice is like a wound-up spring, being ingeniously "frozen" in a high-energy state by the tiny grain size; when the stress field of crack propagation reaches the particle, it will instantly trigger its martensitic phase transformation to the stable monoclinic phase, a process accompanied by approximately 4% volume expansion, like setting a series of self-expanding microscopic barriers along the crack path, which can effectively compress and close the crack tip, converting the destructive mechanical energy into beneficial phase transformation energy. Therefore, the value of zirconium dioxide powder is far more than its inherent hardness and inertness; it lies in this active and intelligent stress response ability - it does not passively endure damage, but dynamically defends itself through delicate lattice reconstruction, which enables the composite materials constructed by it to not only withstand extreme temperatures, but also possess astonishing toughness, silently performing the miracle of reversing from brittleness to toughness in the thermal barrier coatings of aerospace engines or high-performance artificial joints.

Hazard description h315-h318-h222-h229-h319-h335-h314, Precautions p264-p280a-p305 + P351 + p338-p310a-p321-p332 + p313-p210-p211-p251-p280i-p410 + p412-p260h-p301 + p330 + p331-p303 + p361 + p353-p405-p501a-p261-p304 + p340, Dangerous goods sign Xi, Hazard category code 36 / 37 / 38, Safety instructions 26-36 / 37-39-36

This is our advanced product Zirconium Dioxide Powder

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The detailed steps for synthesizing zirconia by laboratory combustion method are as follows:

1. Preparation of raw materials: Prepare zirconium metal or zirconium alloy, cut it into small pieces or powders, and prepare oxidizing agents such as nitric acid and hydrofluoric acid.

2. Preparation of zirconium salts: Mix zirconium metal or zirconium alloy with oxidizing agents such as nitric acid and hydrofluoric acid to undergo oxidation reaction and generate corresponding zirconium salts. The chemical equation for this process is:

4Zr + 4HNO₃(aq) + 4HF(aq) → 4Zr(NO₃)₄ (aq) + 2H₂O(l).

3. Precipitation conversion: React zirconium salt with excess ammonia water to generate zirconium hydroxide precipitate. The chemical equation for this process is:

Zr(NO₃)₄ (aq) + 4NH₃·H₂O(aq) → Zr (OH)₄(s) + 4NH₄NO₃(aq).

4. Drying: After washing the precipitate of zirconia, place it in an oven or dryer for drying to remove any moisture. When drying, temperature and time should be controlled to avoid the decomposition or deformation of zirconia.

5. High temperature decomposition: Heat the dried zirconia to a high temperature to decompose it into zirconia and water. The chemical equation for this process is:

2Zr(OH)₄ (s) → ZrO₂(s) + 2H₂O(g).

6. Grinding and screening: The high-temperature decomposed zirconia can be ground and screened to ensure its particle size and morphology meet the requirements of experiments or industrial applications.

zirconium dioxide powder has a wide range of applications in many fields, mainly due to its unique physical properties. With the continuous development of technology, the application fields of zirconia will continue to expand, bringing more convenience and benefits to human production and life
1. Automotive industry: Solid electrolytes that can be used to manufacture fuel cells. This electrolyte allows ions to pass through and maintain high chemical stability, enabling fuel cells to efficiently generate electricity and reduce environmental impacts.
1.1. Engine components:
It can be used to manufacture automotive engine components, such as cylinder liners, piston rings, etc. These components need to withstand high temperature, high pressure, and friction, and zro2 has high hardness, wear resistance, and chemical stability, which can meet these requirements. By using zirconia, the service life and reliability of engine components can be improved, as well as the performance and efficiency of the engine.
1.2. Braking system:
It can be used to manufacture friction materials in automotive brake systems. The braking system needs to be able to quickly stop the vehicle, so the friction material needs to have high friction coefficient and wear resistance. By using it, the braking performance and reliability of the braking system can be improved, and the safety performance of the vehicle can be improved.
1.3. Fuel cells:
It can be used to manufacture solid electrolytes in automotive fuel cells. Fuel cells are devices that convert chemical energy into electrical energy, with solid electrolytes being an important component. In solid electrolytes of fuel cells, their high ionic conductivity and chemical stability can be utilized to improve the energy density and service life of fuel cells. By using it, the performance and reliability of fuel cells can be improved, reliance on traditional fuels can be reduced, and a more environmentally friendly automotive power system can be achieved.
1.4. Coating and Glazing:
Can be used for automotive coatings and glazes. Coatings and glazes can improve the appearance and corrosion resistance of automobiles, while zirconia has high hardness and chemical stability, which can meet these requirements. By using zirconia coating or glaze, the corrosion resistance and appearance quality of automobiles can be improved.
1.5. Thermal Barrier Coating:
It can also be applied as a thermal barrier coating to automotive engine components. Thermal barrier coating is a coating that can block heat flow and reduce temperature, protecting engine components from high-temperature damage. It has high thermal conductivity and chemical stability, and can be used as a thermal barrier coating material. By using thermal barrier coatings, the high-temperature resistance and service life of engine components can be improved.
2. Nuclear energy field: It can be used as a neutron absorber in nuclear reactors, controlling the speed of nuclear reactions and preventing nuclear proliferation. In addition, it can also be used to manufacture nuclear fuel cladding, protect nuclear fuel, and prevent the leakage of radioactive substances.
2.1. Nuclear fuel cladding:
It can be used to manufacture nuclear fuel cladding. Nuclear fuel cladding is an important component in nuclear reactors, which can protect nuclear fuel from damage such as high temperature and corrosion. It has high melting point, high chemical stability, and excellent insulation performance, and can be used as a nuclear fuel cladding material. By using cladding, the safety and reliability of nuclear reactors can be improved, and the lifespan of nuclear fuel can be extended.
2.2. Structural Materials for Nuclear Reactors:
It can be used to manufacture structural materials for nuclear reactors. The structural materials of nuclear reactors need to withstand harsh environments such as high temperature, high pressure, and high corrosion. By using zirconia structural materials, the performance and reliability of nuclear reactors can be improved, and the risk of accidents can be reduced.
2.3. Nuclear Fuel Cycle System:
Zirconia can be used to manufacture components in nuclear fuel cycle systems. The nuclear fuel cycle system includes the production, processing, storage, and recycling of nuclear fuel, and it has excellent chemical stability and corrosion resistance, which can be used to manufacture various components in the cycle system. By using components, the efficiency and safety of the nuclear fuel cycle system can be improved, and the risk of environmental pollution can be reduced.
2.4. Radioactive waste treatment and storage:
It can be used for radioactive waste treatment and storage. Radioactive waste has strong radioactivity and toxicity, posing great harm to humans and the environment. It can be used to manufacture structural materials and sealing materials in radioactive waste treatment and storage facilities. By using materials, the safety and reliability of radioactive waste treatment and storage facilities can be improved, and the impact on the environment and humans can be reduced.
3. Biomedical field: Due to its biocompatibility and bioactivity, it is used as a biomaterial in the biomedical field. It can be used to manufacture medical devices such as artificial joints, dental implants, and drug carriers. In addition, it can also be used in areas such as biological imaging and drug delivery.
3.1. Biomaterials:
It can be used as a biomaterial for human hard tissue repair and replacement. Due to its high hardness, high wear resistance, and excellent biocompatibility, it is widely used in fields such as oral repair and orthopedic implants. For example, zirconia all ceramic teeth have the advantages of aesthetics, high strength, and good biocompatibility, making them one of the preferred materials for dental restoration. In addition, zirconia bone implants are also widely used in orthopedic surgeries, which can replace damaged bone tissue and improve patients' recovery speed and quality of life.

3.2. Drug carrier:
It can be used as a drug carrier to wrap drugs on its surface or inside, achieving targeted delivery and sustained release of drugs. This drug carrier has the advantages of good targeting, controllable drug release, and minimal damage to normal tissues. By combining drugs with zirconia, the efficacy of drugs can be improved and side effects can be reduced, providing new avenues for the treatment of diseases such as tumors and inflammation.
3.3. Bioimaging:
It can be used as a biological imaging agent for medical imaging examinations. For example, nanoparticles can serve as X-ray contrast agents to improve the contrast and clarity of images in CT scans. In addition, it can also serve as a magnetic resonance imaging agent to improve the resolution and contrast of MRI images. These biological imaging agents have the advantages of safety, efficiency, and sensitivity, which can provide doctors with more accurate diagnostic information.
3.4. Organizational Engineering:
It can be used as a scaffold material in tissue engineering, providing a suitable environment for cell growth and tissue regeneration. This scaffold material has excellent biocompatibility and processability, which can bind to cells and promote tissue regeneration. By combining it with other biomaterials, tissue engineering scaffolds with specific shapes and functions can be constructed, providing new avenues for the treatment of diseases such as wound repair and organ transplantation.
It has extensive application value in the field of biomedicine. By using it, various high-performance and high-quality biomedical materials and equipment can be developed, providing better protection for human health. With the continuous development of technology, the application field of zirconia in the biomedical field will continue to expand, providing more possibilities for future healthcare and disease treatment.

4. Gas turbine: Plasma sprayed zirconia thermal barrier coating has made great progress in the application of aviation and industrial gas turbines, and has been used in the turbine part of gas turbines to a certain extent. Since this coating can reduce the temperature of gas-cooled high-temperature parts by 50 ~ 200 ℃, it can significantly improve the durability of high-temperature parts, or allow to increase the gas temperature or reduce the demand for cooling gas to keep the temperature borne by high-temperature parts unchanged, so as to improve the efficiency of the engine.

5. Ceramic materials: zirconium dioxide powder is used as raw material for kiln industry because of its high refractive index, high melting point and strong corrosion resistance. Piezoelectric ceramic products include filters, loudspeakers, ultrasonic underwater acoustic detectors, etc. There are also daily-use ceramics (industrial ceramic glaze), zirconium bricks and zirconium tubes for smelting precious metals, etc. nano zirconia can also be used as matrix materials for polishing agents, abrasive particles, piezoelectric ceramics, precision ceramics, ceramic glazes and high-temperature pigments.

6. Other: In addition, zirconia can be used in the manufacture of white hot gas lampshade, enamel, white glass, refractory crucible, etc. Radiography. Abrasive materials. Together with yttrium, it is used to manufacture light source lamp, thick film circuit capacitor material and piezoelectric crystal transducer formula in infrared spectrometer.

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