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  • Cordierite - an overview | ScienceDirect Topics
    Cordierite granites The cordierite granites have the greatest crustal affinity, though in some ways their petrogenesis and magmatic evolution is the most problematic In a general sense, the petrography and geochemistry of these plutons accords with derivation from aluminous metasedimentary protoliths (Chappell and White, 1974) Such a process
  • Mechanism of cordierite formation obtained by high temperature . . .
    However, cordierite has a very narrow sintering temperature, so the sintering of high-purity cordierite is challenging [9, 10] Various procedures, such as adding sintering aids to raw materials and switching to natural minerals and solid waste, have been extensively investigated to reduce the sintering temperature [ [11] , [12] , [13] ]
  • Microstructure, thermal expansion, hardness and thermodynamic . . .
    The cordierite ceramics (samples DT04M and DT08M) showed lower values of CTE compared with monolithic cordierite (sample DT00M) Sample DT008 possessed the lowest value of CTE demonstrating a decrease of 31 3% with respect to monolithic cordierite The low CTE values of cordierite ceramics may be due to the sapphirine phase
  • Cordierite - an overview | ScienceDirect Topics
    Cordierite is a ring silicate, typically with low refractive indices and birefringence, and in thin section tends to be confused with quartz or feldspars Twinning is known on {110} and {310}, forming simple, lamellar, or cyclic twins
  • Comprehensive chemical analyses of natural cordierites: implications . . .
    Cordierite samples from pegmatites and metamorphic rocks have been analysed for major [electron microprobe analysis (EMPA)] and trace elements [inductively coupled plasma mass spectrometry (ICP-MS), secondary ion mass spectrometry analyses (SIMS)] as well as for H 2 O and CO 2 (coulometric titration), and the results evaluated in conjunction
  • Cordierite synthesis. A time-resolved neutron diffraction study
    In order to elucidate the mechanism of reaction during the cordierite synthesis a kinetic study has been carried out by means of X-ray diffraction and neutron thermo-diffraction It was thus possible to elucidate between the reactions leading to the cordierite synthesis and those that gave rise to the undesired phases generated during this process
  • Fabrication and characterization of porous cordierite ceramics prepared . . .
    Three forms of cordierite have been discovered: α-cordierite (hexagonal, P6 mcc), β-cordierite (orthorhombic, Cccm) and μ-cordierite (a meta-stable modification) [8] The α-cordierite, which is also known as indialite, is the most common form found in ceramic bodies, while the other two forms are much less common and they can revert to the
  • Thermal and mechanical properties of cordierite, mullite and steatite . . .
    Crystalline cordierite is a major component of so-called cordierite ceramics This type of ceramics consists of the MgO:Al 2 O 3:SiO 2 ternary system components in the 2:2:5 ratio Cordierite ceramics is used mainly in applications requiring high thermal shock resistance, thanks to its very low coefficient of thermal expansion
  • Effect of sintering temperature on the thermal and mechanical . . .
    Cordierite-based membranes were elaborated from Ghassoul clay and algae as porosity agent [23] In this paper, the cordierite-based ceramics were successfully synthesized by a solid-state reaction technique from a mixture of Ghassoul clay, kaolin and alumina, according to the stoichiometric ratio of cordierite (2MgO 2Al 2 O 3 5SiO 2 )
  • Crystallization mechanisms of cordierite glass-ceramics with “surface . . .
    In cordierite glass, Mg‐bearing quartz solid solutions leads to remarkably different effects from the Li‐bearing quartz solid solutions Mg‐bearing quartz solid solutions are thermodynamically metastable, and stable phases such as cordierite and cristobalite can be formed at higher temperatures and or longer times [38, 39]





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