The first committee of National Technical Committee 461 on Synthetic Crystals of Standardization Administration of China (TC461) was established in September 2008, and the Second Committee was established in October 2015 (approved by the National Standardization Administration Commission (Comprehensive letter [2015] No. 75 from the office of National Standard Committee), with the Secretariat of Beijing Sinoma Synthetic Crystals Co., Ltd. , Donghai Quality Control & Inspection Center and Institute of Sinoma Synthetic Crystals. It is mainly responsible for the formulation and revision of national standards in the field of Synthetic Crystals (except medical), including the standardization of synthetic crystals materials and devices, raw materials for crystal growth, testing instruments for crystal performance, crystal processing equipment and special equipment for crystal growth, application technology specification and management.
Artificial synthetic crystal technology refers to the preparation of single crystal or polycrystalline materials by artificial synthesis, involving physics, chemistry, crystallography and material preparation technology; it is specifically divided into laser crystal, nonlinear optical crystal, semiconductor crystal, scintillation crystal, optical crystal (including sapphire crystal), piezoelectric crystal, superhard crystal, insulating crystal, and artificial synthetic crystal material processing technology. It can be widely used in modern military technologies such as guidance, ranging, imaging, optoelectronic countermeasures, laser tactical weapons, missiles, rockets and other fields, as well as satellites, manned spacecraft, communications, computers, medical treatment, nuclear physics, detection, home appliances, industrial electronic equipment and other fields.
Artificial synthetic crystal is an important part of new materials. It is a key development area supported by the national medium and long-term science and technology development plan, major key engineering technologies in the next 20 years, strategic emerging industries and the 13th five year development guide for new materials industry.
Standard system framework in the field of Synthetic Crystals:
List of current standards for synthetic crystals:
|
Serial Number |
Type |
Standard Number |
Standard Name |
|
1 |
National |
GB/T 39131-2020 |
Terms and definitions of synthetic crystal materials |
|
2 |
National |
GB/T 39123-2020 |
Specification for cadmium-zinc telluride single crystal material for X-ray and γ-ray detector |
|
3 |
National |
GB/T 32988-2016 |
Synthetic quartz crystal wafer for optical low pass filter (OLPF) |
|
4 |
National |
GB/T 29420-2012 |
Nd-doped vanadate laser crystal devices |
|
5 |
National |
GB/T 29421-2012 |
Vanadate birefringent crystal devices |
|
6 |
National |
GB/T 7895-2008 |
Optical Grade Synthetic Quartz Crystal |
|
7 |
National |
GB/T 7896-2008 |
Test Method for Optical Grade Synthetic Quartz Crystal |
|
8 |
National |
GB/T 16863-1997 |
Method for texting refractive index of crystals |
|
9 |
Industrial |
JC/T 2512-2019 |
Technical requirements of high gray-tracking resistance potassium titanyl phosphate (HGTR-KTP) crystal devices for diode pumped solid state laser |
|
10 |
Industrial |
JC/T 2513-2019 |
Test method for gray-track resistance of potassium titanyl phosphate crystal devices |
|
11 |
Industrial |
JC/T 2545-2019 |
High performance pyroelectric single crystals for infrared detectors |
|
12 |
Industrial |
JC/T 2416-2016 |
Relaxor ferroelectric crystals |
|
13 |
Industrial |
JC/T 2417-2016 |
Lithium Tetraborate Piezoelectirc Single Crystals |
|
14 |
Industrial |
JC/T 2418-2016 |
General technical condition and measuring method of Neodymium-doped Gadolinium Yttrium Calcium Oxoborate laser crystal with second harmonic generation |
|
15 |
Industrial |
JC/T 2419-2016 |
Potassium titanyl phosphate (KTP) crystal for optical parametric oscillation |
|
16 |
Industrial |
JC/T 2420-2016 |
Grit and Stick of CVD Diamond |
|
17 |
Industrial |
JC/T 817-2014 |
Gem grade synthetic cubic zirconia crystals |
|
18 |
Industrial |
JC/T 2249-2014 |
Cristobalite |
|
19 |
Industrial |
JC/T 2250-2014 |
Fused Silica |
|
20 |
Industrial |
JC/T 439-1991(1996) |
Zinc sulfide crystals for the window of infrared detector |
|
21 |
Industrial |
JC/T 813-1985 |
Fusion-cast synthetic mica |
|
22 |
Industrial |
JC/T 814-1985 |
Testing method of Fusion-cast synthetic mica |
|
23 |
Industrial |
JC 467-1992(1996) |
Synthetic Mica Pearlescent Pigments |
|
24 |
Industrial |
JC/T458-1992(1996) |
Diamond Grinding wheel |
|
25 |
Industrial |
JC/T816-1985(1996) |
Synthetic diamond thin-wall bit |
|
26 |
Industrial |
JC/T 425-1991（1996） |
Glassy carbon materials |
|
27 |
Industrial |
JC/T 471-1992（1996） |
Synthetic quartz crystal for photosensitive detector |
Relevant standards involved in the formulation and revision: Evaluation requirements for green factories in synthetic crystals industry (2020-0448T-JC)
Standard development and revision projects under research:
|
Serial Number |
Type |
Project Number |
Standard Name |
|
1 |
National |
20173755-T-609 |
Cerium bromide scintillator |
|
2 |
National |
20173472-T-609 |
Specification of sapphire plate for laser window |
|
3 |
National |
20173471-T-609 |
Method for measuring refractive index of uniaxial optical crystals |
|
4 |
National |
20184214-T-609 |
Bismuth germanate scintillation crystal for positron emission tomography |
|
5 |
National |
20193114-T-609 |
Test methods of optical and laser performance for chromium and erbium co-doped yttrium scandium gallium garnet crystal |
|
6 |
Industrial |
2016-1656T-JC |
Rare earth oxides for scintillation crystals |
|
7 |
Industrial |
2016-1655T-JC |
The powder catalyst used for diamond synthesiss |
|
8 |
Industrial |
2016-1654T-JC |
Zinc sulfide crystals for the window of infrared detector |
|
9 |
Industrial |
2017-0406T-JC |
Titanium doped sapphire laser crystal |
|
10 |
Industrial |
2018-0402T-JC |
Cerium doped lanthanum bromide scintillator |
|
11 |
Industrial |
2018-1963T-JC |
Er doped yttrium scandium gallium garnet laser crystal devices |
|
12 |
Industrial |
20180401T-JC |
Specification for cerium doped lutetium silicate single crystal materials |
|
13 |
Industrial |
2018-2259T-JC |
Europium doped strontium iodide scintillator |
|
14 |
Industrial |
2019-0157T-JC |
Laser Level Modules |
|
15 |
Industrial |
2019-0156T-JC |
Terbium Gallium Garnet（TGG）Magneto-optical Crystal |
|
16 |
Industrial |
2020-1582T-JC |
Fusion-cast synthetic mica |
|
17 |
Industrial |
2020-1606T-JC |
Testing method of Fusion-cast synthetic mica |
|
18 |
Industrial |
2020-1583T-JC |
Large size rare earth oxide crystals |
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