Beryllium copper

Beryllium copper, also known as beryllium bronze, is the "king of elasticity" of copper alloys. After solution aging heat treatment, products with high strength and conductivity can be obtained.The machinability, weldability and polishing properties of beryllium bronze are similar to those of common high copper alloys. 

Beryllium bronze can be divided into two categories. According to the composition of the alloy, beryllium content is 0.2%-0.6% for high conductivity (electrical and thermal) beryllium bronze, and beryllium content is 1.6%-2.0% for high strength beryllium bronze. According to the manufacturing process, it can be divided into cast beryllium bronze and deformed beryllium bronze. C is the most widely used beryllium bronze alloy in the world. Deformed beryllium bronze includes C17000, C17200 (high strength beryllium bronze) and C17500 (high conductivity beryllium bronze). The corresponding cast beryllium bronzes are C82000, C82200 (high conductivity cast beryllium copper) and C82400, C82500, C82600, C82800 (high strength wear resistant cast beryllium copper). The largest beryllium-copper alloy manufacturer in the world is Brush Wellman Company of the United States, whose enterprise standards correspond to international standards and have certain authority. The history of beryllium bronze production in China is almost synchronized with that in the former Soviet Union and the United States, but only high strength beryllium bronze QBe1.9, QBe2.0 and QBe1.7 are listed in the national standards. Other high-conductivity beryllium bronze or cast beryllium bronze have been put into mass production according to the needs of the development of petroleum industry and national defense industry.

Beryllium bronze has good comprehensive properties. Its mechanical properties, such as strength, hardness, wear resistance and fatigue resistance, rank first among copper alloys. Its electrical conductivity, thermal conductivity, non-magnetic, spark resistance and other properties can not be compared with other copper materials. The strength and electrical conductivity of beryllium bronze are at the lowest value in the solution soft state. After work hardening, the strength is improved, but the electrical conductivity is still the lowest value. After aging and heat treatment, the strength and conductivity of the alloy increase obviously.

Monocrystalline Cell

 
Product name: Monocrystalline Cell
Research & Development Targets: Monocrystalline Cell Efficiency
Currently: 17.28%
In 5 Years: 21.23%
Planned Capacity:2010: 120MW;2011: 1.26GW

What is SnO2

SnO2, same as the Stannic oxide, chemical formula is SnO2. It is a white  or light gray square, hexagonal or orthorhombic powder. The temperature of 1630 ° C, the boiling point is 1800 ° C. Density is 6.95 g / mL at 25 ° C, it is also an excellent transparent conductive material. It is the first transparent conductive material to be put into commercial use. In order to improve its conductivity and stability, it is often used for doping, such as SnO2:Sb, SnO2:F, etc.

Electrode performance

1. Bulk density
6.38-6.58g/cm3
2. bending strength
Room temperature 1155kg/cm2
1000°C 641kg/cm2
1200°C 166kg/cm2
1400°C 95kg/cm2
3. Resistivity (Ω·cm)
Room temperature 93
400 ° C 6.1000
600 ° C 1.4000
800°C 0.0200
900°C 0.0150
1000°C 0.0098
1100°C 0.0084
4, anti-soda calcium glass erosion rate (mm / h)
1000°C 0.53 x 10-3
1100°C 0.63 x 10-3
5, thermal expansion rate (1200 ° C)
0.69%

SnO2 is an important semiconductor sensor material. The gas sensor prepared by it has high sensitivity and is widely used in the detection and prediction of various combustible gases, environmental pollution gases, industrial exhaust gases and harmful gases. The humidity sensor prepared by using SnO2 as a base material has applications in improving indoor environment, precision instrument equipment room, library, art museum, museum, etc. By doping a certain amount of COO in the SnO 2, Co 2 O 3 , Cr 2 O 3 , Nb 2 O 5 , Ta 2 O 5 , etc., varistors with different resistance values ​​can be fabricated in power systems, electronic circuits, household appliances, etc. There are a wide range of uses.

SnO2 has excellent permeability to visible light, excellent chemical stability in aqueous solution, and specific conductivity and infrared radiation reflection characteristics. Therefore, it is transparent in lithium batteries, solar cells, liquid crystal displays, optoelectronic devices, and transparent devices. Conductive electrodes, anti-infrared detection and protection and other fields are also widely used. SnO 2 nanomaterials have smaller size effects, quantum size effects, surface effects and macroscopic quantum tunneling effects, which are more common in traditional optical properties such as light, heat, electricity, sound, magnetic and other macroscopic properties. Significant changes, so nanomaterials can be used to improve the performance of sensor materials.

Nano- Tio2 titanium dioxide nanopowder nanoparticles for Cosmetic

Product name : Nano- Tio2 titanium dioxide nanopowder/nanoparticles for Cosmetic

CAS# :13463-67-7

Property :
This product is a dedicated cosmetic titanium dioxide; it can effectively prevent the damage of UV on human skin. This product is non-toxic and harmless, and has an excellent compatibility with other raw materials of cosmetic. Because of its chemical stability, high refractive index, opacity, hiding power, white, and non-toxic and harmless, Nano- Titanium dioxide is widely used in the field of cosmetics to do the function of the beauty whitening.

Specifications:

Item no:	AK-T02H	AK-T02SG	AK-T02SYv
Appearance	White loose powder	White loose powder	White loose powder
Content of TiO2 (%)	99	82-85	82-85
Crystal type	rutile	rutile	rutile
Particle size(nm)	30	30	30
BET(m2/g)	80±15	80±15	80±15
PH value	6--8	6--8	6--8
Surface Properties	hydrophilic	hydrophobic	hydrophobic
arsenic, ppm ≤	0.5	0.5	0.5
lead, ppm ≤	1.0	1.0	1.0
surface treatment	Coated with SiO2,Al2O3	Coated with SiO2,Al2O3, silicon oil	Coated with SiO2,Al2O3,stearic acid
Anti-UV rate %	≥ 99	≥ 99	≥ 99

Application Features :

1, the product has high brightness, good transparency, good ventilation, and natural light was white.
2, the product has good dispersion in regarding hydrophilic and hydrophobic products.
3, the product has good weathering resistance, suitable for sun whitening system.
4, the product has good compatibility with other raw materials of cosmetics.
5, the product can both reflect and scatter ultraviolet radiation, and can absorb ultraviolet light, thus it has a stronger UV-blocking ability
6.The product can be widely used on vanishing cream, sunscreen, skin-whitener and other cosmetics.

Dispersing liquid T33

Product name:Dispersing liquid T33

CAS No.:13463-67-7

Molecular Formula:TiO2

Appearance:white transparent liquid with bule light

Dispersant:water

PH:4-5

Surface property:hydrophilic

Stability:
Keeping stable system even after many times dilutions, no precipitation and still keeping nano level after long time storage.
Application:
Inside and outside of wall, surface of furniture and glass;
High grade coating, latex-paint, self-cleaning painting;
Self-cleaning pottery and tile;
Fluorescence light, paper-making industry
Light catalystic; UV-resistance;
Textile and cosmetic as well