Results 11 to 20 of about 2,901 (210)
Marcasite at the Permian‐Triassic Transition
Geophysical Monograph Series, Page 377-399., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva +7 more
wiley +6 more sources
α-tricalcium phosphate/fluorapatite-based cement - promising dental root canal filling material [PDF]
Processing and Application of Ceramics, 2022 α-Tricalcium phosphate/fluorapatite (α-TCP/FAp) mixed powders were prepared in order to obtain dental root canal filling cements. Different liquids for cement pastes have been investigated and the most suitable one for obtaining rheologically optimal ...
Kazuz Abdul +8 more
doaj +1 more source
Acta Crystallographica Section B Structural Science, 2007 Apatites commonly adopt P63/m hexagonal symmetry. More rarely, monoclinic chemical analogues have been recognized, including the biologically significant hydroxyapatite, Ca10(PO4)6(OH)2, but the driving force towards lower symmetry has not been systematically examined.
Baikie, T +7 more
openaire +5 more sources
علوم آب و خاک, 2022 This study investigated the effect of the inoculation of the soil with some phosphorus solubilizing microorganisms (PSM) on inorganic P fractions in sandy soil enriched with inorganic and organic amendments.
S. F. Hashemi +2 more
doaj
Advances in Materials Science and Engineering, 2017 The bone-bonding ability of a material is evaluated by examining apatite formation on its surface in simulated body fluid (SBF). Partially stabilized zirconia (ZrO2) is currently attractive as an alternative to titanium (Ti) implants; however, no ...
Eiji Yoshida, Tohru Hayakawa
doaj +1 more source
Crystals, 2020 Sulphur is the third most abundant volatile element in deep Earth systems. Analytical methods for accurately and efficiently determining the sulphur content and oxidation state in natural minerals are still lacking.
Bo Xu +4 more
doaj +1 more source
Apatite Formation on Titanium Containing Apatite
Bioceramics Development and Applications, 2013 Some titanium containing apatite (TMA) ceramics prepared by wet synthesis was superior to Hydroxyapatite (HAp) ceramics of mechanical property and cutting performance. In this study, we investigated chemical reaction of TMA in a body environment. Each TMA or commercial Hydroxyapatite powder (HAp) was formed to circular pellets by uniaxial pressing. The
Tomohiro Uchino, Kana Ichikawa
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Geologica Carpathica, 2018 The apatite assemblage from Maglovec hill (Slanské vrchy Mountains near the city of Prešov) from fissures of hydrothermally altered neovolcanic rocks (andesites and related lithologies) was studied.
Mészárosová Noemi +5 more
doaj +1 more source
Geosciences, 2017 Phosphates from the Martian shergottite NWA 2975 were used to obtain insights into the source and subsequence differentiation of the melt/melts.
Ewa Słaby +5 more
doaj +1 more source
Surface Electrical Behaviors of Apatite, Dolomite, Quartz, and Phosphate Ore
Frontiers in Materials, 2020 The phosphate ore flotation is achieved through the surface electrical behavior difference among apatite, dolomite and quartz, but it is usually affected by the dissolved ions from pulp, especially Ca2+ and Mg2+. The zeta potentials of apatite, dolomite,
Fang Zhou +5 more
doaj +1 more source