Diamond films are widely used in many fields, with PCVD being the mainstream preparation method.

Diamond film refers to a thin film material artificially synthesized using low-pressure or atmospheric pressure chemical vapor deposition (CVD) methods. Diamond film has the advantages of high thermal conductivity, large elastic modulus, fast deposition speed, good chemical stability, and corrosion resistance. It is widely used in industrial wastewater treatment, biomedicine, optical coatings, electronic and electrical, cutting tools and other fields.

Diamond film preparation methods include plasma chemical vapor deposition (PCVD), hot wire chemical vapor deposition (HFCVD) and thermal chemical vapor deposition (TCVD). The plasma chemical vapor deposition method refers to the use of plasma to activate reactive gases to conduct chemical vapor deposition on the diamond surface, thereby producing a diamond film. The products prepared by this method have the advantages of good quality and uniform film thickness, and have now become diamond films. Mainstream preparation methods. In the future, as technology maturity improves, my country’s diamond film production and quality will further increase.

According to the “2023-2028 China Diamond Film Industry Market In-depth Research and Development Prospect Forecast Report released by the Industrial Research Center, many Crystalline diamond film is a representative product of diamond film and is widely used in electronic devices. my country’s polycrystalline diamond film market size will reach US$50 million in 2022, a year-on-year growth of 7.2%. In recent years, Chinese enterprises and scientific research institutions have continued to increase investment in the research and development of polycrystalline diamond films. In 2021, the team of Professor Li Chengming from the University of Science and Technology Beijing successfully developed a polished polycrystalline diamond film with a size larger than 4 inches. The product has extremely high thermal conductivity. Benefiting from the strong enthusiasm for the research and development of polycrystalline diamond films in my country, the development speed of the diamond film industry has further accelerated.

Diamond membranes are widely used in industrial wastewater treatment, biomedicine, optical coatings, electronic and electrical, cutting tools and other fields. In the field of optical coatings, diamond film optical coatings can be used in X-ray windows and infrared optical devices; in the electronic and electrical fields, diamond films can be used as heat sinks and used in microwave devices, high-power laser devices, and highly integrated electronic devices. middle.

The main diamond film manufacturers in my country include Zhongbing Hongjian Co., Ltd., Nanjing Sanchao New Materials Co., Ltd., Changsha Dailer New Material Technology Co., Ltd., Beijing World Diamond Tools Co., Ltd., etc. Wald is my country’s leading enterprise of high-precision diamond tools. Currently, the company is promoting a technological transformation project with an annual output of 200 million square millimeters of diamond film and 1 million high-precision blades.

Industry analysts said that diamond film, as a new type of thin film material, is widely used in many fields. With the gradual release of market demand, the industry The development prospects will continue to improve. In recent years, local companies and scientific research institutions have continued to increase investment in the research and development of diamond films, driving the development of the industry to further accelerate. It is expected that in the future, with in-depth research and technological advancement, the prosperity of the diamond film industry will continue to increase.