Results 11 to 20 of about 923,510 (301)

Effect of Y2O3 on properties of iron-based diamond tools

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
The effects of hot pressing pressure, sintering temperature and Y2O3 content on the hardness, the density, the flexural strength and the fracture morphology of the iron-based matrix were studied by orthogonal test, and the better sintering process ...
Lu WEN   +4 more
doaj   +1 more source

Research Progress on Preparation of La Alloy by Molten Salt Electrolysis

open access: yesKuangchan zonghe liyong, 2022
Lanthanum ranks first among rare earth elements and accounts for a large proportion of the total rare earth elements. It is rich in resources. La alloys have many applications in hydrogen storage materials, magnetic refrigeration, metal targets, and ...
Jia Kang   +6 more
doaj   +1 more source

Vertically grown ultrathin Bi2SiO5 as high-κ single-crystalline gate dielectric

open access: yesNature Communications, 2023
Single-crystalline high-κ dielectric materials are desired for the development of future two-dimensional (2D) electronic devices. However, curent 2D gate insulators still face challenges, such as insufficient dielectric constant and difficult to obtain ...
Jiabiao Chen   +11 more
doaj   +1 more source

The Effect of Oleic Acid Emulsification using SPE on Fluorite and Dolomite Flotation**

open access: yesChemistryOpen, 2021
Collector OA, oleic acid, is widely used industrially for fluorite flotation. Low selectivity, dispersibility and collecting capability of the OA collector are always observed. In this study, compared with flotation of dolomite, a collector mixture of OA
Dr. Weiwei Wang   +8 more
doaj   +1 more source

CsCl-Type Compounds in Binary Alloys of Rare-Earth Metals with Zinc and Copper [PDF]

open access: yes, 1964
The CsCl-type structure has been previously reported in alloys of copper with yttrium, gadolinium, and erbium, [1] and of zinc with lanthanum, cerium, and praesodymium.
Chao, C. C., Duwez, P., Luo, H. L.
core   +1 more source

Silicone elastomers filled with rare earth oxides [PDF]

open access: yes, 2020
Silicones which possess, amongst others, remarkable mechanical properties, thermal stability over a wide range of temperatures and processability, and rare earth oxides(REO), known for their unique optic, magnetic and catalytic properties can be ...
Airinei, Anton   +6 more
core   +1 more source

Integration of Sentinel-1A, ALOS-2 and GF-1 Datasets for Identifying Landslides in the Three Parallel Rivers Region, China

open access: yesRemote Sensing, 2022
In the process of using InSAR technology to identify active landslides, phenomena such as steep terrain, dense vegetation, and complex clouds may lead to the missed identification of some landslides.
Cong Zhao   +8 more
doaj   +1 more source

Metabolomic Analysis Reveals Contributions of Citric and Citramalic Acids to Rare Earth Bioleaching by a Paecilomyces Fungus. [PDF]

open access: yes, 2019
Conventional methods for extracting rare earth elements from monazite ore require high energy inputs and produce environmentally damaging waste streams. Bioleaching offers a potentially more environmentally friendly alternative extraction process.
Alvarez-Cohen, Lisa   +2 more
core   +1 more source

Comprehensive Utilization of Sulfur Separation Tailings of High Sulfur Rare Metal Complex Ore in Coal Measure

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of metallurgical engineering. Comprehensive utilization of sulfur separation tailings from a coal measure high sulfur rare metal complex ore in Chongqing area was studied, which provided a feasible basis for the recovery of ...
Xueru Feng, Shuping Liu, Chao Li
doaj   +1 more source

Crystal structure of catena-poly[diaqua-bis(μ2-2-(4-(2,4,4-trimethylpentan-2-yl)phenoxy)propanoato-κ2O:O')-(2-(4-(2,4,4-trimethylpentan-2-yl)phenoxy)propanoato-κ2O,O')yttrium(III)], C51H79O11Y

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2021
C51H79O11Y, monoclinic, P21/c (no. 14), a = 8.8682(3) Å, b = 22.1328(8) Å, c = 27.9848(10) Å, β = 96.710(1)°, V = 5455.2(3) Å3, Z = 4, Rgt(F) = 0.0495, wRref(F2) = 0.1275, T = 296(2) K.
Zhong Ke-Xiang   +4 more
doaj   +1 more source

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