Plus Icons

Fabrication and thermal conductivity of CeO2–Ce3Si2 ...

The elemental Ce and Si powder were loaded into milling vessel with 3:2 M ratio, with milling media of 10:1 ball-to-powder ratio. The milling process was carried out at 550 rpm for 12 h, followed by 1 h milling and 5 min break. The milled powder attached to the vessel wall was collected by additional milling with acetone at 400 rpm for 30 min ...

Keep Reading
Plus Icons

Journal of Alloys and Compounds | Vol 309, Issues 1–2 ...

Hydrogen sorption in homologous lanthanum and cerium nickel silicides. A.V Morozkin, S.N Klyamkin, V.N Verbetsky, S.N Lushnikov, ... A.V Tarasov. Pages 197-200 Download PDF. ... Ti–TiN hardmetals prepared by in situ formation of TiN during reactive ball milling of Ti in ammonia. D Wexler, A Calka, Ahmed Y Mosbah. Pages 201-207

Keep Reading
Plus Icons

Preparation of cellulose nanofiber from softwood pulp by ...

Abstract. This paper reports the possibility of producing cellulose nanofiber from softwood pulp using a simple ball milling technique under ambient pressure and at room temperature. The effects of milling conditions including the ball-to-cellulose mass ratio, milling time, ball size and alkaline pretreatment were investigated.

Keep Reading
Plus Icons

Enhanced thermoelectric power factor of Re-substituted ...

Higher manganese silicides (HMS) are promising thermoelectric materials owing to the abundance of the constituent elements in the earth crust, environmental friendliness and good chemical stability at high temperatures. However, the metallic MnSi layers with a lateral size as large as ∼50 μm are formed in th The Chemistry of Thermoelectric Materials

Keep Reading
Plus Icons

Features of the Solid Solution (Mo0.9,Cr0.1)Si2 Formation ...

the powder under milling was estimated on the basis of the specific energy, that is, the energy acquired by 1 g powder after one ball collision [23-24], taking into account the time of milling. A criterion for choice of the milling time was minimal change in the phase composition of initialmixture.

Keep Reading
Plus Icons

Gadolinium silicide/silicon composite with excellent high ...

As the combined active materials, we investigated various transition metal silicides, TiSi 2, VSi 2,, CrSi 2, FeSi 2,, NiSi 2,, Cu–Si, LaSi 2,,, and MmSi 2 (Mm called cerium-rich misch metal, an alloy of light rare-earth elements). It has been demonstrated that the performance of some composite electrodes can be significantly improved by ...

Keep Reading
Plus Icons

Ball Milling and Spark Plasma Sintering of Cerium ...

Ball milling and Spark Plasma Sintering (SPS) are two novel processing techniques that are being investigated to achieve high density, compositionally homogenous fuel with minimal processing time. In this study, cerium silicides were used as a surrogate material to investigate the feasibility of high-energy ball milling and Spark Plasma ...

Keep Reading
Plus Icons

Mechanochemical synthesis and spark plasma sintering of ...

The cerium silicides, Ce 5 Si 3, Ce 3 Si 2, CeSi, CeSi 2− y, and CeSi 2− x, have been prepared from the elements by mechanochemical processing in a planetary ball mill.Preparation of the cerium silicide Ce 5 Si 4 was unsuccessfully attempted and potential reasons for this are discussed. Temperature and pressure of the milling vial were monitored in situ to gain insight into the ...

Keep Reading
Plus Icons

US3348967A - Process of making an article having a hard ...

US3348967A US247676A US24767662A US3348967A US 3348967 A US3348967 A US 3348967A US 247676 A US247676 A US 247676A US 24767662 A US24767662 A US 24767662A US 3348967 A US3348967 A US 3348967A Authority US United States Prior art keywords carbide framework metallic infiltration carbon Prior art date Legal status (The legal status is an assumption and is not …

Keep Reading
Plus Icons

Ball milling,grain size and mechanical attrition

2. CONTENTS • Ball milling-Introduction, use, principle and construction, method, application, merits and de-merits and conclusion. • Mechanism of grain size reduction- introduction, grain growth and its rules, mechanism, principle and various size reducing instruments. • Mechanical attrition- introduction, principle and process ...

Keep Reading
Plus Icons

CURRICULUM VITAE Monica Sorescu - Duquesne University

Growth Mechanism through Mechanical Ball Milling of Lanthanum and Iron Oxides", Journal of Materials Science 46 (2011) 6709-6717. 17) M. Sorescu, T. Xu, L. Diamandescu and D. Hileman, "Synthesis and characterization of indium oxide-hematite magnetic ceramic …

Keep Reading
Plus Icons

Brian Jaques, Ph.D., P.E. - Micron School of Materials ...

"Ball-on-Ring Test Validation for Equibiaxial Flexural Strength Testing of Engineered Ceramics." ... "Development of Fe-9Cr Alloy via High Energy Ball Milling and Spark Plasma Sintering." ... "Mechanochemical Synthesis and Spark Plasma Sintering of the Cerium Silicides."

Keep Reading
Plus Icons

(PDF) Mechanochemical Synthesis of Cerium Monosulfide

Based on the selfpropagating reaction of Ce metal and sulfur powder, a highenergy milling method was used to synthesize cerium monosulfide [16]. As a result, a small amount of Ce 2 S 3 remained as ...

Keep Reading
Plus Icons

Silicide - an overview | ScienceDirect Topics

The in situ synthesis from the elements does not yield a monophase powder while formation of molybdenum silicides by MCP is sensitive to the energy of milling. Ball milling with a lower energy promotes formation of MoSi 2 by diffusion in a solution of Mo-Si, but high-energy milling involves a self-sustaining reaction as it occurs in the Ti–C ...

Keep Reading
Plus Icons

Ball milling of Fe40Ni40P20-xSix (x = 6, 10 and 14 ...

Progress in the ball milling amorphization of elemental powders with the overall composition Fe40Ni40P20-xSix (x = 6, 10 and 14) and thermally induced crystallization of obtained alloys were characterized by differential scanning calorimetry, X-ray diffraction and transmission Möss spectroscopy (TMS). Diffusion of Si into Fe and Ni alloys promotes the formation of the amorphous …

Keep Reading
Plus Icons

Greener synthesis of chemical compounds and materials ...

The use of ball milling allows us to increase energy efficiency and, at the same time, avoid toxic reagents and solvents. These reactions, as well as MW-assisted processes, take place without the use of solvents and at room temperature. Being simple and environmentally friendly, the ball milling is also considered as a green tool for chemistry ...

Keep Reading
Plus Icons

Nitrides and custom nitride compounds

In order to support our customers' requirements, Materion produces nitride compounds in a variety of thin film deposition forms, mesh sizes and purities. Evaporation forms include: powders, targets, spray, pieces, granules, pellets, slugs and wire. Following are some of …

Keep Reading
Plus Icons

Probing Transition-Metal Silicides as PGM-Free Catalysts ...

SEM micrographs of the investigated transition metal silicides after ball milling: (a) MoSi 2; (b) WSi 2; (c) TaSi 2; (d) Ni 2 Si recorded at 15 kV acceleration voltage. Figure 3. Cyclic voltammograms in 0.1 M HClO 4, taken at room temperature and a scan rate of 10 mV/s in either Ar (0 rpm, light grey) or H 2 atmosphere (1600 rpm, black).

Keep Reading
Plus Icons

CORE

The cerium silicides, Ce5Si3, Ce3Si2, CeSi, CeSi2−y, and CeSi2−x, have been prepared from the elements by mechanochemical processing in a planetary ball mill. Preparation of the cerium silicide Ce5Si4 was unsuccessfully attempted and potential reasons for this are discussed. Temperature and pressure of the milling vial were monitored in ...

Keep Reading
Plus Icons

Packing ceramic media | CERADIR®

Product Details. 、、、、、、、、、、。., ...

Keep Reading
Plus Icons

Mechanochemical synthesis and spark plasma sintering of ...

The cerium silicides, Ce5Si3, Ce3Si2, CeSi, CeSi2−y, and CeSi2−x, have been prepared from the elements by mechanochemical processing in a planetary ball mill. Preparation of the cerium ...

Keep Reading
Plus Icons

1 - Cerium silicide, 99.9% (REO) - 35836 - Alfa Aesar

Cerium silicide is used as a surrogate material to investigate the feasibility of high-energy ball milling and Spark Plasma Sintering (SPS) for the production of uranium silicide. …

Keep Reading
Plus Icons

Formation of Mn-doped iron silicides by ball milling ...

12%Using X-ray diffraction (XRD) and Möss spectroscopy, we have studied the sequence of phase formations in the solid Mn-doped iron silicide series Fe1−x Mn x Si2, with 0.00 ≤ x ≤ 0.12, in samples prepared by mechanical alloying from the pure elements. The milling was carried out at room temperature in Ar atmosphere in a horizontal mill for 15 h. The XRD patterns …

Keep Reading
Plus Icons

Cerium Oxide Ball Milling Media - autotest.legnica.pl

· High-energy vibratory ball milling (Super-Misuni, Nissin Giken Co. Ltd.) was employed, with a rotational speed of 710 r.p.m., where the milling atmosphere was ambient. The powders and zirconia balls (ϕ10 mm) were charged in a stainless steel vial (ϕ100 mm), where the ball-to-powder weight ratio was 18 : 1 (18 g balls per 1 g ...

Keep Reading
Plus Icons

Characterization of U3Si2 Surrogates to Predict U3Si2 ...

Studies show that a wide range of cerium silicides, including Ce 3 Si 2 were produced by high energy ball milling (HEBM), which is a self enclosed processing technique that can limit oxygen contami nation along with silicon and cerium loses.

Keep Reading
Plus Icons

Vibratory Ball Mill For Milling Cerium Oxide

B02C 17 - Disintegrating by tumbling mills, i.e. mills having a ... 10/08/2014, EP2785463A1 Planetary mill and method of milling. 10/07/2014, US8853112 Sintered bead based on zirconia and on cerium oxide ... 07/10/2014, WO2014005570A3 Method for operating a stirred ball mill and ... 06/04/2014, EP2737954A1 Method for manufacturing pulverized material and vibrating pulverizer.

Keep Reading
Plus Icons

Journal Rapid Communication - Wiley

Mechanochemical Synthesis of Cerium Monosulfide Gordon A. Alanko‡ and Darryl P. Butt‡,§,† ‡Department of Materials Science and Engineering, College of Engineering, Boise State University, Boise, Idaho 83725 §Center for Advanced Energy Studies, Idaho Falls, Idaho 83401 Cerium sulfides were prepared by high-energy milling of cerium and sulfur.

Keep Reading
Plus Icons

Mechanochemical synthesis and consolidation of ...

Ball milling of products in ethanol prior to leaching made the removal of Mg3B2O6 possible by leaching. Yield of CeB6 was 68.6% in CS. MCP was performed in a stainless steel vial with a planetary ...

Keep Reading
Plus Icons

Nickel Silicides Synthesized by High Energy Ball Milling ...

The high energy ball milling of Ni-50 atom % Si elemental powder mixtures was carried out using a planetary mill. X-ray diffraction (XRD) was used to identify the phase evolutions during the high energy ball milling period. The microstructure morphology of the powders milled different time was determined by field emission scanning electron microscope (FESEM).

Keep Reading
Plus Icons

Thermoelectric silicides: A review | Request PDF

5 Typical semiconducting silicides are β-FeSi 2, 6,7 HMS (high manganese silicon), 8,9 Mg 2 Si, 10,11 and SiGe. 12,13 Among these, β-FeSi 2 is well-known by its strong oxidation resistance and ...

Keep Reading
Plus Icons

Cerium—Silicon System | Request PDF

The cerium silicides, Ce5Si3, Ce3Si2, CeSi, CeSi2−y, and CeSi2−x, have been prepared from the elements by mechanochemical processing in a planetary ball mill. Preparation of the cerium ...

Keep Reading

Do you have any questions ?

Whether you want to work with us or are interested in learning more about our products,we’d love to hear from you.