The State Key Laboratory of Superhard MaterialsInstitute of Atomic and Molecular Physics, Jilin UniversityThe superhard material laboratory and high-pressure physics laboratory were established.The State Planning Commission approved the establishment of the State Key Laboratory for Superhard Materials in 1989. The laboratory passed the national acceptance and was officially opened to the public at home and abroad. In 2003, 2008, 2013 and 2018, it participated in and passed the national assessment of the laboratory.[1]The current director of the Academic Committee is Academician Xue Qikun[2]The laboratory director is Professor Liu Bingbing[3]。
In March 2019, it was evaluated by the Ministry of Science and Technology as a good laboratory in the field of materials by the State Key Laboratory in the field of engineering and materials in 2018.
Chinese name
State Key Laboratory of Superhard Materials (Jilin University)
Ultra hard materials are typical high-pressure phase materials, which play a key role in the industrial chain of many industries in the country and determine the industrial level of the country. They are called "strategic materials" by developed countries.High pressure science is the scientific basis and important frontier for the development of superhard materials.The high-pressure phase, which is different from the normal material structure and properties under high pressure, is the source of exploring new materials.High voltage research is an important way to obtain key data of modern national defense.The laboratory will carry out research around superhard multifunctional materials, new materials that are difficult to prepare under normal pressure and high-pressure science.
The laboratory promotes open exchanges by opening topics, international cooperation, visiting scholars, and hosting international conferences.Institute of Physics, Chinese Academy of SciencesA number of scientific research institutions have undertaken the open subject of the laboratory, maintained good cooperation relations with famous international research institutions such as Washington Carnegie Research Institute, hosted international conferences such as "International Academic Invitational Meeting for High Pressure Materials", and senior visiting scholars from the United States, Sweden, Germany, and South Korea come to the room every year to participate in the conference or organize in the laboratory“Frontier Forum of Material Science”Report.With the strong support of Jilin University, the laboratory's long-term goal is to reach the international advanced level in its main research direction and reach the international leading level in several research fields.Make important and original academic work, promote the development of disciplines, and build the laboratory into a research center of superhard multi-functional materials and high-pressure science that has an important influence in the world.Promote the industrialization of scientific research achievements, and make contributions to improving the scientific and technological level of China's superhard material industry, enhancing international competitiveness and achieving sustainable development.
Main research directions
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(1) High temperature and high pressure synthesis of superhard and new functional materials.Study under high temperature and pressureSynthetic superhard materialTo improve the quality of superhard materials, explore the preparation of new functional materials under high temperature and high pressure and other conditions, as well as new materials that are difficult to prepare under normal pressure, and promote the industrialization of research achievements.
(2) Super hard multi-functionFilm material。The key preparation technologies and basic physical problems of superhard multifunctional film materials are studied;Develop and promote the application of superhard film materials in finishing tools;Research the prototype device structure and preparation technology, and explore new materials in high-power optoelectronic devices, radiation resistant and high temperature resistant semiconductors, etcHigh tech fieldApplication in.
(3) The effect of high pressure on the structure and properties of substances and the phase transition under high pressure.Develop Raman spectroscopy, X-ray diffraction, infrared spectroscopyBrillouin scattering , electrical measurement and other high pressure in-situ micro area measurement technologies, establish a theoretical system under high pressure, explore the structure, properties and phase transformation laws of bulk materials and nano materials under high pressure, and provide experimental and theoretical basis for the preparation of superhard and multi-functional high pressure phase materials.Carry out research on high-voltage technology in other disciplines.[4]
Scientific research achievements
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Since the construction of the laboratory, significant progress has been made in scientific research:[4]
1. High temperature and high pressure synthesis of superhard and new functional materials.We independently researched and developed the synthesis technology of more than 20 types of high grade diamond single crystals and special high grade industrial diamonds, carried out a series of basic research on applications, promoted the growth of the industry and led the development of the industry.
2. Super hard multi-functionFilm materialaspect.The preparation technology and process of large size and high-quality diamond thick films have been improved;Prepared for high powersemiconductor laser High thermal conductivity diamond film heat sink;Realize the application of diamond thick film in the field of precision machining.The superconductivity of boron doped diamond thick film was first discovered, and the superconducting transition temperature and zero resistance temperature were determined;We have made breakthroughs in the calibration of properties, energy level model and carrier transport characteristics of diamond based broadband heterostructures;The growth, structure and field emission characteristics of high hardness carbon nitrogen (CNx) films are systematically presented;The vapor phase epitaxial growth of diamond single crystals was realized, and large size diamond single crystals were prepared.
3. The influence of high pressure on the structure and properties of substances and the phase transition under high pressure.It was found that the metal sodium changed into a "transparent" wide band gap insulator at 2 million atmospheric pressure.A new molecular crystalline phase of iodine was found.Explain that two new vibration modes were observed in the high-pressure in-situ Raman spectra of iodine and bromine.Two intramolecular covalent bonds with different bond lengths coexist in the same system, which is of great significance for understanding molecular dissociation and the study of metal hydrogen.On the experimental platform for in-situ material structure analysis and performance test under ultra-high pressure and the theoretical calculation platform under high pressure built in the laboratory, it is found that the pressure can effectively improve theThermoelectric materialMany new high-voltage effects such as thermoelectric efficiency;The new phase transitions, such as liquid-liquid first order phase transition and pressure induced metallization phase transition, were observed at high temperature and high pressure;It reveals the physical mechanism of pressure induced phase transition that is difficult to determine in many substances in the past;First realization of C60 nanorods andCarbon nanotubesPressure induced covalent bond polymerization of inner C60 leads to new quasi one-dimensional nanomaterials with excellent properties that are difficult to obtain by atmospheric pressure methods.These important research progress and achievements have published a batch of high-quality papers in Nature, PNAS, Physical Review Letters and other journals, won provincial and ministerial science and technology awards for many consecutive years, and won a batch of invention patents, which has improved the scientific research ability of the laboratory.
Historical evolution
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In 1985, the laboratory took the lead in carrying out research on diamond films in China, and produced the first diamond film in China in 1987.Since then, it has made an important breakthrough in the artificial synthesis of amber cubic boron nitride.After a long time of efforts, it has laid a solid foundation in the basic research of the application of superhard materials.In view of the important position of superhard materials in the national economic construction, the State Planning Commission approved the establishment of the State Key Laboratory of superhard materials in 1989, the laboratory passed the national acceptance and officially operated in 1995, and passed the first national assessment in 2003.
Scientific research team
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At present, the laboratory has 82 fixed personnel, 66 researchers (36 professors, 24 associate professors, 6 lecturers), 16 technicians (1 researcher, 8 senior engineers/experimenters/associate researchers, 6 engineers, 1 assistant worker), and 3 part-time managers.The research team includes Zou Guangtian, academician of the Chinese Academy of Sciences, foreign academician of the Chinese Academy of SciencesNational Academy of Sciences Mao Heguang, a foreign academician of the Royal Academy of Sciences, and John SAcademician Tse, Professor Koliyimigula of Ukraine.2 winners of the National Science Fund for Distinguished Young Scholars, 3 leading talents of the "Ten Thousand Talents Program", 1 chief scientist of the National "973" Program, 4 people of the "Ten Million Talents Program"Science Fund for Outstanding Young ScholarsOne winner, Jilin Province“Changbai Mountain Scholar”5 persons;The innovation team of the Ministry of Education successfully concluded the "novelty characteristics induced by the pressure of typical condensed matter" and successfully rolled over. A large number of outstanding talents and innovation teams including one innovation team in key fields of the Ministry of Science and Technology[5]。
High voltage research strongly depends on technology and equipment, so the laboratory has a strong technical support team, which has carried out a lot of technical innovation and instrumentsEquipment modification, providing guarantee for the rapid development of the laboratory.
Honors won
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In March 2019, it was evaluated by the Ministry of Science and Technology as a good laboratory in the field of materials by the State Key Laboratory in the field of engineering and materials in 2018.[6]
personnel training
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The laboratory has trained 107 master students, 47 doctoral students, 127 master students, 72 doctoral students and 3 post doctors in the station.A considerable number of graduate students have performed well in school, and a total of 146 people have won various awards, including outstanding graduate students at the university level, outstanding youth thesis award at the National High Voltage Academic Seminar, outstanding doctoral thesis award at the university level, and Hong Kong "Seeking Truth"Postgraduate Scholarship, "Tang Aoqing" scholarship, etc.Some of these outstanding graduates have joined the research team of our laboratory, adding new force to the laboratory. Some of them have been assigned to brother colleges, enterprises and institutions, becoming the new force in the research of superhard materials and high-pressure science. Some have begun to emerge in the academic circles at home and abroad.
