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Preparation of High Strength Ceramic Materials from Titanium-bearing Blast Furnace Slags
This is an article in the field of mineral materials. In order to explore the large-scale and high-value application of titanium-containing blast furnace slags in the ceramic field, through the design based on CaO-SiO2-MgO(15%)-Al2O3 phase diagram, and ...
Shuqin LI +4 more
doaj +1 more source
Basalt identification is usually performed by microscope, so the appraisal results are easily influenced by personal professional level and subjective factors.
XU Nai-cen, SHEN Jia-lin, ZHANG Jing
doaj +1 more source
Trace element geochemistry of ordinary chondrite chondrules: the type I/type II chondrule dichotomy [PDF]
We report trace element concentrations of silicate phases in chondrules from LL3 ordinary chondrites Bishunpur and Semarkona. Results are similar to previously reported data for carbonaceous chondrites, with rare earth element (REE) concentrations ...
Alard, Olivier +2 more
core +2 more sources
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae +6 more
wiley +1 more source
Silica-Rich Bright Debris Disk around HD 15407A
We report an intriguing debris disk towards the F3V star HD 15407A, in which an extremely large amount of warm fine dust (~ 10^(-7) M_Earth) is detected. The dust temperature is derived as ~ 500-600 K and the location of the debris dust is estimated as 0.
Bohren +21 more
core +1 more source
High‐Titanium Zircon Rims in Rhyolite – A Reflection of Adiabatic Ascent?
The ascent of granitic magma from source to emplacement is rapidly achieved through dyking, resulting in negligible heat loss to the surrounding wallrock (i.e., adiabatic). Zircon growth during ascent can record the changing magma conditions including adiabatic cooling and heating, resulting in high titanium rims on low titanium cores without ...
Carson Kinney +2 more
wiley +1 more source
The structural transformation from disorder to order was achieved by regulating the A‐site of double perovskite, boosting IQE and EQE to 78% and 43%, respectively. The excellent luminescence properties of the representative CYNO:1%Bi3+ phosphor highlight the multifunctional application potential in solid‐state lighting, fingerprint recognition, and ...
Rui Wang +11 more
wiley +1 more source
High Strength Pyroxene-Based Glass- Ceramic Foams in the Presence of Fe2O3
Strong glass-ceramic foams with a compressive strength of 20 MPa were prepared by adding various amounts of Fe2O3 to a soda lime-based glass composition, and SiC as a foaming agent.
P. Shahsavari +2 more
doaj
A ramsayite-type oxide, Ca2Sn2Al2O9
The title compound, dicalcium nonaoxidodistannate(IV)dialuminate, is the second example which crystallizes in the isotypic structure of a pyroxene silicate, Na2Ti2Si2O9 (ramsayite).
Rong Tu +3 more
doaj +1 more source
Geochemical evolution of the Nyiragongo volcano (Virunga, Western African Rift, Zaire) [PDF]
Strongly undersaturated foiditic lavas (nepheline—melilitites, nephelinites, leucitites) from the active Nyiragongo volcano have been analysed for trace elements (Sc, V, Cr, Co, Ba, REE, Hf, Ta, Th and U) by instrumental neutron activation analysis.
J. Hertogen +2 more
doaj +1 more source

