What process is suitable for high vacuum electric furnaces?
11-04-2025 Author: KJ technology
High vacuum electric furnaces are suitable for various processes that require strict requirements for environmental purity, temperature control accuracy, and material properties. They specifically cover the following fields and typical applications:
1. Material synthesis and preparation
Preparation of Nanomaterials and Superconducting Materials
Principle: A high vacuum environment can prevent oxidation pollution of nanoparticles or superconducting materials by reactive gases such as oxygen and water vapor, while promoting material formation and growth.
Application: Synthesize carbon nanotubes, quantum dots, oxide films, etc., such as preparing high-purity SiC epitaxial wafers through vacuum furnaces for efficient power devices.
Ceramics and Hard Alloy Sintering
Principle: A vacuum environment helps to eliminate gases and impurities from materials, promote material densification, and enhance mechanical properties.
Application: Sintered hard alloy cutting tools, ceramic bearings, etc. The product has higher density, significantly improved hardness and wear resistance.
Metal Powder Metallurgy
Principle: Vacuum sintering can reduce the oxide film between powder particles, promote metal bonding, and obtain high-performance metal parts.
Application: Manufacturing aviation engine turbine blades, molds, etc., with material strength and corrosion resistance superior to traditional processes.
2. Semiconductor and Electronics Industry
Crystal Growth and Epitaxy
Principle: Vacuum environment reduces impurity doping and improves crystal quality.
Application: Silicon single crystal growth, silicon carbide (SiC) epitaxial deposition, used for manufacturing integrated circuits and power devices.
Integrated Circuit Packaging and Testing
Principle: Vacuum environment reduces pollution and improves product reliability.
Application: Silicon wafer diffusion, oxidation, and packaging processes to ensure stable chip performance.
Manufacturing of electronic components
Principle: Vacuum brazing technology achieves seamless connection of high-precision microelectronic devices.
Application: Welding integrated circuits, transistors, etc. to avoid poor contact caused by oxidation.
3. Metal Heat Treatment and Processing
Vacuum annealing and tempering
Principle: To avoid oxidation problems caused by metal annealing in conventional atmosphere and improve microstructure.
Application: Heat treatment of high-speed steel, titanium alloy and other cutting tools to enhance hardness and toughness.
Vacuum quenching and solution treatment
Principle: Rapid cooling is achieved through gas quenching or oil quenching to obtain martensitic structure or solid solution.
Application: Quenching treatment of stainless steel and alloy steel to improve wear resistance and corrosion resistance.
Vacuum degassing and slag removal
Principle: Heating under high vacuum conditions to remove volatile impurities and gases from the material
Application: Purification of high-purity metals such as titanium and niobium, as well as degassing treatment of electronic devices.
4. Chemical and Petrochemical Industry
Catalyst treatment
Principle: The vacuum environment promotes the drying, activation, and regeneration of catalysts, improving efficiency.
Application: Treatment of precious metal catalysts in petrochemical industry to extend their service life.
Special environmental reactions
Principle: Utilizing the sealing and corrosion resistance of a vacuum furnace to achieve reactions under high temperature and high pressure.
Application: Synthesis of chemical raw materials such as nanocatalysts and ceramic membranes.
5. Aerospace and high-end manufacturing
Manufacturing of high-performance materials
Principle: The vacuum environment meets performance requirements such as high temperature resistance, corrosion resistance, and lightweight.
Application: Solid solution aging treatment of aircraft engine turbine blades can improve creep resistance by more than 30%.
Sintering of ceramic based composite materials
Principle: Vacuum sintering produces dense and high-strength ceramic matrix composite materials.
Application: Manufacturing aviation structural components, missile tail fins, etc.
6. In the field of new energy
Lithium battery material processing
Principle: Vacuum heat treatment optimizes lattice structure and enhances battery performance.
Application: Heat treatment of positive electrode materials (such as lithium cobalt oxide and lithium iron phosphate) to increase capacity and extend cycle life.
Preparation of hydrogen storage and transportation materials
Principle: Vacuum melting and heat treatment improve the hydrogen absorption performance of hydrogen storage alloys.
Application: Preparation of LaNi ₅ alloy to promote the development of hydrogen energy storage and transportation technology.
7. Biomedical field
Surface modification of medical implants
Principle: Improve biocompatibility and antibacterial performance through vacuum coating technology.
Application: Coating hydroxyapatite (HA) on the surface of artificial joints for tighter adhesion with bone tissue.
Manufacturing of biosensors
Principle: Vacuum deposition of sensitive thin films to improve detection sensitivity.
Application: The glucose sensor adopts vacuum coating technology, which significantly improves the detection accuracy.
8. Scientific research
Basic scientific research
Principle: Simulate material changes and reactions in extreme environments.
Application: Research on phase transition, catalytic reactions, and Earth and planetary science simulation experiments of new materials.
High temperature and high pressure experiment
Principle: Explore the behavior of matter under extreme conditions through vacuum furnace experimental conditions.
Application: Provide important experimental data and conclusions for scientific research.
