Piezoelectric materials Piezoelectric materials Apatite is a group of phosphate minerals, usually referring to: hydroxylapatite, fluorapatite, and chlorapatite, named for high concentrations of OH-, F-, or Cl- ions, respectively, in the crystal lattice. The formula of the admixture of the three most common species is Ca5( PO4)3(OH, F, Cl). ...more on Wikipedia about "Apatite"
Barium titanate is an oxide of barium and titanium with the chemical formula BaTiO3. It is a displacive type ferroelectric ceramic material, with a photorefractive effect and piezoelectric properties. It has tetragonal crystal structure. Its CAS number is . It has the appearance of a white powder or transparent crystals. It is insoluble in water and soluble in concentrated sulfuric acid. Its risk and safety phrases are and . ...more on Wikipedia about "Barium titanate"
Lanthanum gallium silicate (refer to as LGS in the article), also known as langasite, has a chemical formula of , where A, B, C and D indicate particular cation sites. A is a decahedral (Thomson cube) site coordinated by 8 oxygen atoms. B is octahedral site coordinated by 6 oxygen atoms, and C and D are tetrahedral sites coordinated by 4 oxygen atoms. In this material, lanthanum occupied the A-sites, gallium the B, C and half of D-sites, and, silicon the other half of D-sites. The crystal structure is shown below: ...more on Wikipedia about "Lanthanum gallium silicate"
Lead zirconate titanate (
Lithium tantalate ( 3), material similar to lithium niobate, possesses unique optical, piezoelectric and pyroelectric properties which make it valuable for motion detectors, cell phones and possibly nuclear fusion. Considerable information is available from commercial sources about this crystal. According to an April 2005 NATURE article; Brian Naranjo, Jim Gimzewski and Seth Putterman at UCLA applied a large temperature difference to a lithium tantalate crystal producing a large enough charge to result in nuclear fusion products from a hydrogen sample without extreme heat or pressure. Their results have been replicated. ...more on Wikipedia about "Lithium tantalate"
PolyVinylidine DiFluoride, or PVDF is a highly non-reactive and pure thermoplastic fluoropolymer. It is also known as KYNAR®. ...more on Wikipedia about "Polyvinylidene fluoride"
Potassium sodium tartrate is a double salt first prepared (in about 1675) by an apothecary, Pierre Seignette, of La Rochelle, France. As a result the salt was known as Seignette's salt or Rochelle salt. ...more on Wikipedia about "Potassium sodium tartrate" Simply http://www.shortopedia.com!
Quartz is the most abundant mineral in the Earth's continental crust. It has a hexagonal crystal structure made of trigonal crystallized silica (silicon dioxide, SiO2), with a hardness of 7 on the Mohs scale. Density is 2.65 g/cm³. The typical shape is a six-sided prism that ends in six-sided pyramids, although these are often twinned, distorted, or so massive that only part of the shape is apparent from a mined specimen. Additionally a bed is a common form, particularly for varieties such as amethyst, where the crystals grow up from a matrix and thus only one termination pyramid is present. A quartz geode consists of a hollow rock (usually with an approximately spherical shape) with a core lined with a bed of crystals. ...more on Wikipedia about "Quartz"
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