Aluminum nitride, described as azanylidynealumane in IUPAC nomenclature, is an inorganic compound the aluminum and nitrogen stood for by the chemistry formula AlN <1>. The is no a naturally-occurring compound and also has to be artificially synthesized <2>. The is identified by high thermal conductivity and also electrical resistivity, also as fantastic corrosion resistance <2>.
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Aluminum Nitride Identification
|CAS Number||24304-00-5 <1, 3>|
|PubChem CID||90455 <1>|
|ChemSpider ID||81668 <4>|
|EC Number||246-140-8 <1, 3>|
|RTECS Number||N/A <3>|
|InChI Key||PIGFYZPCRLYGLF-UHFFFAOYSA-N <1>|
Aluminum Nitride Formula
How is Aluminum Nitride Prepared
Its synthesis requires carbothermal palliation of aluminum oxide (Al2O3) using gaseous nitrogen in ~ a temperature that 1400-1700 °C <6>:Al2O3 + C → Al2O2 + COAl2O2 + 2C + N2 → 2AlN + 2CO
Sintering aids like CaO or Y2O3 room used, and then the mix is hot pressed to create the thick technical-grade material.
Aluminum Nitride Powder
Properties and also Characteristics of Aluminum Nitride
|Molar Mass/Molecular Weight||40.989 g/mol <1>|
|Color and Appearance||White to pale yellow powder or paper <3, 4>|
|Melting Point||2200 °C, 3990 °F <3>|
|Boiling Point||2517 °C, 4563 °F <3>|
|Density||2.9-3.3 g cm-3 <3>|
|State of issue at room temperature (solid/liquid/gas)||Solid <3>|
|Solubility||Slightly soluble in mineral acids, decompose in water options containing acids and bases <7>|
|Solubility in Water||Insoluble (monocrystalline form), hydrolyzes (powder form)|
|Thermal Conductivity||80-200 W/K.m <3>|
|Volume Resistivity||1010-1016 Ω.cm <8>|
|Dielectric Constant||9.14 <9>|
|Hardness||1100 Kg/mm2 <10>|
|Thermal Emissivity (100 °C)||0.93 <11>|
|Infrared Refractive index (300 K)||2.1-2.2 (monocrystals and epitaxial films), 1.9-2.1 (polycrystalline films), 1.8-1.9 (amorphous films) <9>|
|Lattice constant (300 K) a and also c||3.11(1) Å and 4.98(1) Å <9>|
Aluminum Nitride crystal Structure
What is It used forRF filter in cellphones consist the a microelectromechanical device (MEMS) device, dubbed thin film bar acoustic resonator (FBAR), which provides AlN <13>.A piezoelectric layer of AlN is used in make micromachined ultrasound transducers (MUTs) that have actually applications in velocity sensing, robotics, and medical imaging <14>.Aluminum nitride nanotubes are used as chemical sensors because that detecting toxic gases <15>.
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Aluminum Nitride Ceramic Sheet
Aluminum Nitride Toxicity
Exposure come AlN v mouth, inhalation, or injection may cause bone and also lung toxicity <17>. Repeated exposure deserve to irritate the eyes and also skin <17>.