“ FACTS ABOUT BERYLLIUM”

Beryllium is the chemical element in the periodic table that has the symbol Be and atomic number 4. It has several unique properties:

- Beryllium is uniquely strong,

- Beryllium is uniquely light,

- Beryllium is used to make cell phones, missiles and aircrafts,

- Beryllium is in fact highly toxic and should therefore never be tasted,

- Beryllium is one of the lightest metals and has one of the highest melting points among the light metals,

- Beryllium is Steel gray in color,

- Beryllium's modulus of elasticity is about one-third greater than steel,

- Beryllium is nonmagnetic and resistant to concentrated nitric acid,

- Beryllium is also has superior thermal conductivity and resists oxidation in air in normal temperatures,

- Beryllium improves many physical properties when added as an alloying element to aluminium, copper (notably the alloy beryllium copper), iron and nickel,

- Beryllium does not form oxides until it reaches very high temperatures,

- Beryllium is the most common window material for X-ray equipment and components of particle physics experiments,

- The high thermal conductivities of beryllium and beryllium oxide have led to their use in thermal management applications.

Posted by Direniş ÇAYLI on October 28, 2016

Comments

Molybdenum Trioxide Nanoparticles/Nanopowder and Applications

General Information about Molybdenum Trioxide Molybdenum trioxide is chemical compound with the formula MoO3. Its chief application is as an oxidation catalyst and as a raw material for the production of molybdenum metal. Molybdenum Trioxide is a very light blue powder. Molybdenum Trioxide Nanoparticles/Nanopowder and Their Applications Like many nanoparticles/nanopowder , Molybdenum Trioxide nanoparticles/nanopowder are used as catalysts. These catalysis reactions include hydrogenation catalysis and cracking catalysis. Molybdenum Trioxide nanoparticles/ nanopowder are useful for...

Hydroxyapatite Nanopowders and Their Applications

Hydroxyapatite, is a naturally occurring mineral form of calcium apatite with the formula Ca 5 (PO 4 ) 3 (OH). Pure hydroxyapatite powder is white. Naturally occurring apatites can, however, also have brown, yellow, or green colorations, comparable to the discolorations of dental fluorosis. Hydroxyapatite Nanopowder/Nanoparticles (50 nm, 99.95+%) has been widely used as a biocompatible ceramic in many areas of medicine, but mainly for contact with bone tissue, due to its resemblance to mineral bone. In mammals, the skeleton presents a carbonated and partially substituted apatite, based on nanocrystal aggregates, and associated with collagen, building up 3-D structures present in various bone tissue conformations like trabecular or cancellous bone. There has been growing interest in developing bioactive synthetic ceramics that could closely mimic natural apatite characteristics. As mentioned before, Hydroxyapatite Nanopowder is the main inorganic constituent of bon...

Rundown about Silicon Oxide Wafer

The main insulating material used in micro-technology is Silicon Dioxide, which in chemical symbols is written as SiO2. In semiconductor technology, SiO2 thin film layers are mainly used as dielectric material film in transistors, capacitors (DRAM) or flash-memories. Silicon Oxide Wafers are produced using crystallization, solid state and other ultra-high purification processes such as sublimation. This process forms a cylindrical ingot, which is then sliced and polished to form wafers. Thermal oxide is a kind of "grown" oxide layer, compared to CVD deposited oxide layer, it has a higher uniformity, and higher dielectric strength, it is an excellent dielectric layer as an insulator . In most silicon- based devices, thermal oxide layer play an important role to pacify the silicon surface to act as doping barriers and as surface dielectrics. The simplest way to produce an insulating silicon oxide layers (SiO2) on silicon wafers is to oxidize silicon with oxygen, which ...

Nanografi Nanotechnology

Search This Blog