Results 31 to 40 of about 34,282 (303)

Rapid Analysis of Feldspar by X-ray Diffractometry Rietveld Refinement Method

open access: yesYankuang ceshi, 2017
The content of minerals in feldspar can be calculated by chemical analytical results, but the analytical process is long and the calculation process is complex.
RAN Jing, DU Gu, WANG feng-yu
doaj   +1 more source

Low temperature synthesis of porous silicate ceramics [PDF]

open access: yesScience of Sintering, 2007
Impregnation of a polyurethane sponge with kaolin, feldspar, silica, fusible glass slurry followed by temperature treatment in air in the temperature range 800-1000 0 C leads to the formation of aluminosilicate ceramics with a set pore size.
Méndez Enríquez Y.   +6 more
doaj   +1 more source

Cathodoluminescence Characterization of Maskelynite and Alkali Feldspar in Shergottite (Dhofar 019) [PDF]

open access: yes, 2009
Dhofar 019 is classified as an olivine-bearing basaltic shergottite and consists of subhedral grains of pyroxene, olivine, feldspar mostly converted to maskelynite and minor alkali feldspar. The CL spectrum of its maskelynite exhibits an emission band at
Gucsik, Arnold   +11 more
core   +1 more source

Sintering and mechanical properties of porcelains prepared from algerian raw materials Sinterização e propriedades mecânicas de porcelanas preparadas com matéria-prima argelina

open access: yesCerâmica, 2011
Porcelain is a type of ceramics highly valued for its beauty and strength. The overall goal of this work is to utilize local raw materials within the following fractions: 37 wt.% kaolin, 35 wt.% feldspar and 28 wt.% quartz.
S. Kitouni, A. Harabi
doaj   +1 more source

The Influence of Magnesia Addition and Sintering Temperature on The Properties of Synthesized Electrical Porcelain [PDF]

open access: yesEngineering and Technology Journal, 2015
The influence ofmagnesia (MgO) content at different sintering temperatures on the physical and dielectric properties of synthesized electrical porcelain was investigatied.Feldspar is one of the major components of porcelain,since feldspar is not ...
Fadhil A. Chyad   +3 more
doaj   +1 more source

Efeito da modificação da composição química na sinterização e microestrutura de porcelanas de ossos bovinos Effect of chemical composition modification on sinterability and microstructure of bone china

open access: yesCerâmica, 2010
Bone china é um tipo especial de porcelana que foi primeiramente desenvolvida no Reino Unido e é caracterizada pela alta resistência mecânica, grande alvura e translucidez.
D. Gouvêa, S. Hirakata, H. Kahn
doaj   +1 more source

EFFECT OF BIOCHAR ON K AND P RELEASE FROM K-FELDSPAR & ROCK PHOSPHATE AND ITS IMPACT ON SOME GROWTH PARAMETER OF MAIZE PLANT [PDF]

open access: yesArab Universities Journal of Agricultural Sciences, 2019
Pot experiments were carried out using sand (collected from Ismailia ARS), in the greenhouse to study the effect of biochar application, on K and P release from their natural bearing minerals i.e.,K- feldspar and rock phosphate and\or bentonite on some ...
Manal El mahdy   +3 more
doaj   +1 more source

Soil formation in high elevation and permafrost areas in the Qinghai Plateau (China) Edafogénesis en zonas elevadas y con permafrost en el Plateau Qunghai (China) Formação do solo em áreas de elevada altitude e em ambientes"permafrost" do planalto de Qinghai Plateau (China) [PDF]

open access: yesSpanish Journal of Soil Science, 2012
<p style="text-align: justify;">Soil systems continuously gain and lose matter and energy even in areas where climate is too harsh to support the higher plants such as in high elevations and in permafrost environments. The purpose of this
Joselito Arocena   +2 more
doaj   +1 more source

Geochemistry of a spheroidal weathering profile in a tropical mountainous landscape, Rio de Janeiro, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2022
Boulders are an important material in debris flow and their source is coupled with spheroidal weathering profiles that produce corestones. The goal of this work was to establish the geochemical transformations that produced corestones and distinguished ...
CARLA S. SILVEIRA   +4 more
doaj   +1 more source

Investigation of the surface properties of gangue minerals in PGM bearing ores [PDF]

open access: yes, 2005
Bibliography: leaves 90-95.The recovery of Platinum Group Minerals (PGM) and associated sulphides by froth flotation from the Bushveld Igneous Complex is complicated by the presence of naturally floatable gangue minerals such as talc.
Martinovic, Jasmina
core   +1 more source

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