Results 31 to 40 of about 6,681 (230)

Substrate Grain-Dependent Chemistry of Carburized Planar Anodic TiO2 on Polycrystalline Ti [PDF]

open access: yes, 2017
open11Mixtures or composites of titania and carbon have gained considerable research interest as innovative catalyst supports for low-and intermediate-temperature proton-exchange membrane fuel cells.

core   +1 more source

Carbothermic Reduction of Bauxite Residue.

open access: yesShigen-to-Sozai, 1999
A recovery method of iron component as metallic phase from bauxite residue (red mud) discharged from Bayer process was examined. Tablets prepared with fine mixtures of red mud and carbonaceous materials were heated up to various temperatures to reduce iron oxides in the red mud.
Takaya KITAJIMA, Eiki KASAI
openaire   +2 more sources

Investigation of Boro/Carbothermic and Carbothermic Reduction Synthesized Calcium Hexaborides

open access: yesJournal of Boron, 2018
Bu çalışmada, iki farklı yöntemle sentezlenen CaB6kristal yapısı ve toz morfolojisi incelenmiş ve sentez yönteminin, yapıüzerindeki etkisi Rietveld metodu ve TEM yardımıyla incelenmiştir. CaB6tozları iki farklı yöntem kullanılarak sentezlenmiş ve üretim yöntemininkristal yapı üzerindeki etkisinin incelenmesi için sentez sıcaklığı ve süresiher iki ...
YILMAZ, Duygu   +3 more
openaire   +3 more sources

Microstructure and ablation properties of C/C-Zr-Si-O composites prepared by carbothermal reduction of hydrothermal co-deposited oxides

open access: yesMaterials & Design, 2018
C/C-Zr-Si-O composites were prepared by carbothermal reduction of hydrothermal co-deposited ZrO2, SiO2, and C. The bulk density of composites reached 1.71 g/cm3 with 8 cycles of co-deposition.
Haibo Ouyang   +5 more
doaj   +1 more source

The effect of iron catalyzed graphitization on the textural properties of carbonized cellulose: Magnetically separable graphitic carbon bodies for catalysis and remediation [PDF]

open access: yes, 2016
Whereas pyrolysis of pristine microcrystalline cellulose spheres yields nonporous amorphous carbon bodies, pyrolysis of microcrystalline cellulose spheres loaded with iron salts leads to the formation of magnetically separable mesoporous graphitic carbon
Beale, AM   +7 more
core   +1 more source

Analysis of contributing factors for synthesizing silicon carbide using Taguchi's approach

open access: yesMATEC Web of Conferences, 2017
This study concerns the carbothermal reduction of milled amorphous silicon dioxide (SiO2) to produce silicon carbide (SiC) using Taguchi's approach. The L9(34) orthogonal design matrix was selected involving four operation specifications; temperature ...
Mohd Sohor Mohd Aizat Hafiz   +2 more
doaj   +1 more source

Experimental and mechanism research on carbothermal reduction of spodumene ore via vacuum

open access: yesMaterials Research Express, 2020
Considering the low resource utilisation rate and high environmental pollution afflicting the current technology for extracting Li from spodumene ore, this report proposes a clean process for the vacuum carbothermal reduction of spodumene ores for Li ...
Fei Lyu   +7 more
doaj   +1 more source

3D hierarchical porous graphene aerogel with tunable meso-pores on graphene nanosheets for high-performance energy storage [PDF]

open access: yes, 2015
New and novel 3D hierarchical porous graphene aerogels (HPGA) with uniform and tunable meso-pores (e.g., 21 and 53 nm) on graphene nanosheets (GNS) were prepared by a hydrothermal self-assembly process and an in-situ carbothermal reaction.
ALM Reddy   +48 more
core   +3 more sources

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Kinetics of Carbothermal Reduction Process of Different Size Phosphate Rocks

open access: yesOpen Engineering, 2021
The effects of particle size on the apparent kinetics of carbothermal reduction process of phosphate rock were studied by non-isothermal thermogravimetric analyses.
Li Pengfei   +7 more
doaj   +1 more source

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