Results 21 to 30 of about 374,172 (360)
Effect of carbon nanotubes on calcium carbonate/calcium silicate phase and morphology [PDF]
Main Group Chemistry, 2017 The composition and microstructure of different CaCO3-Ca2SiO4-carbon nanotube composites have been studied. Materials have been characterized by X-ray diffraction (XRD), high resolution scanning electron microscopy (SEM), thermogravimetric/differential thermal analysis (TG/DTA), and Fourier-transform infrared (FTIR) spectroscopy.
Virginia Gomez +3 more
openaire +3 more sources
Crystal structure of bis(η6-cymene)-tri-μ2-chlorido-ruthenium(II) tetrafluoroborate, C20H28BCl3F4Ru2
Zeitschrift für Kristallographie - New Crystal Structures, 2018 C20H28BCl3F4Ru2, triclinic, P1̄ (no. 2), a = 7.7061(15) Å, b = 12.654(3) Å, c = 13.993(3) Å, α = 68.25(3)°, β = 78.71(3)°, γ = 88.89(3)°, V = 1240.8(5) Å3, Z = 2, Rgt(F) = 0.0686, wRref(F2) = 0.2017, T = 293(2) K.
Yan Xiaowei +3 more
doaj +1 more source
Induced calcium carbonate precipitation using Bacillus species [PDF]
, 2016 Microbially induced calcium carbonate precipitation is an emerging process for the production of self-healing concrete. This study was aimed to investigate the effects and optimum conditions on calcium carbonate biosynthesis.
Berenjian, Aydin +2 more
core +1 more source
Calcium carbonate decomposition
Journal of Thermal Analysis and Calorimetry, 2012 Calcium carbonate decomposes under well-defined conditions giving CaO (solid) and CO2 (gas). The process kinetics are known to be strongly influenced by the CO2 partial pressure and temperature. In dynamic conditions, as in thermogravimetric analysis (TG) and differential thermal analysis (DTA), kinetics influence the observed heat effect and mass ...
Carmen Andrade +2 more
openaire +3 more sources
Asian Journal of Surgery, 2013 Background/Objectives: Our aim was to investigate the calcium content of different gallstone compositions and the pathogenic mechanisms of calcium carbonate gallstones.
Ji-Kuen Yu +6 more
doaj +1 more source
Calcium carbonate-calcium phosphate mixed cement compositions for bone reconstruction [PDF]
, 2006 The feasibility of making calcium carbonate-calcium phosphate (CaCO3-CaP) mixed cements, comprising at least 40 % (w/w) CaCO3 in the dry powder ingredients, has been demonstrated.
Arnaud +55 more
core +2 more sources
Influence of finely ground limestone on cement hydration [PDF]
, 1999 International audienceSome work has been carried out on the effect of calcium carbonate on cement paste, but there is no general agreement on the relative effects of different amounts of calcium carbonate on cement paste properties.
Guilhot, Bernard +2 more
core +3 more sources
Kuangchan zonghe liyongThe main occurrence minerals of vanadium include vanadium titanomagnetite, stone coal vanadium and vanadium lead ores. At present, the vanadium extraction processes of stone coal vanadium ore are mainly sodium roasting-water leaching and calcification ...
Jinwei QU +4 more
doaj +1 more source
Scientific Reports, 2023 Pomacea canaliculata was by far one of the most harmful invasive organisms in the world, causing serious harm to aquatic crops and ecosystem. Calcium carbonate is a common component of aquatic environment, which is important for the growth of Pomacea ...
Yingtong Chen +5 more
doaj +1 more source
Calcite moonmilk of microbial origin in the Etruscan Tomba degli Scudi in Tarquinia, Italy [PDF]
, 2018 A white deposit covering the walls in the Stanza degli Scudi of the Tomba degli Scudi, Tarquinia, Italy, has been investigated. In this chamber, which is still preserved from any kind of intervention such as cleaning and sanitization, ancient Etruscans ...
Arrighi, Chiara +10 more
core +3 more sources