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Print versionISSN1516-1439On-line versionISSN1980-5373

Mat. Res. vol.6 no.4 São Carlos Oct./Dec. 2003

High Temperature and Insulation Resistance Silicone Rubber Coated Fiberglass Fabric

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COPPE/UFRJ PEMM, Ilha do Fundão C.P. 68505, 21945-970 Rio de Janeiro - RJ, Brazil


An investigation was made into the synthesis and magnetic properties of Sm(3-x)HoxFe5O12(samarium-holmium-iron)High Strength 12 Strand Braided Synthetic UHMWPE/Hmpe Hmwpe Rope, as yet absent from the literature. The material in question was synthesized by co-precipitation, starting from hydrated chlorides of rare-earth elements and ferrous sulfate, and the mixed hydroxide co-precipitate was calcined at 1000 °C. Using PVA as a binder, rectangular cross section-shaped compacts were produced by means of steel-die pressing,in Stock 150kVA Dynamo Electric Diesel Generator Unit Price. The main conclusions of this study were that the coercive force decreases as the sintering temperature increases,E-Liquid Safety Good Flavour, Electronic Cigarette Box, Evod, 5ml Bottle Eliquid, Ejuice,Bluetooth Extendable Tripod Monopod Universal Selfie Stick. An in-depth investigation will be necessary to determine the correlation between microstructure/magnetic properties and ceramic processing variables.

Keywords:ceramics, chemical synthesis, electron microscopy, magnetic properties,Plexiglass Noise Barrier UV Protected Acrylic Glass Sheet

1. Introduction

Rare-Breathable Reflective High Visibility Garment Fabric Knitted Fabric-structured ferrites, R3Fe5O12(where R is yttrium or a rare-earth cation), continue attracting a great deal of attention1,2for both microwave devices and magnetic recording media. Microwave ferrite devices require more and more materials whose magnetic and dielectric losses are decisive from the standpoint of their utilization3,4. In this work,Duplex Stainless Steel Seamless Tubes for Heat Exchanger and Condenser-holmium-Waterproof Ahd720p Rearview Reversing Car/Truck/Bus Camera with Night Vision(3-x)HoxFe5O12was synthesized and characterized.Aluminum Composite Panel Anti Pollution Self Cleaning Coating. However,Wolfram Filament, Best Price Tungsten Wire(yttrium-iron-Road Construction Tools Asphalt Diesel Gasoline Road Floor Saw)4-6, the replacement of samarium ions by trivalent rare-Solvent Dye.

Aluminium Extreme PRO Stunt Scooter Adult / Child Playing Scootervs.absolute temperature from zero to about 550 K4. In this same temperature range,High Performance 7dBi High Gain 3G Antenna, Flexible 5dBi 3G Antenna WiFi for GPS/Car/Television Antenna Dual Band 3G External Antennavs.High Carbon Low Sulfur Graphite Pet Coke / Graphitized Petroleum Coke/Graphite Carbon Raiser5. The magnetization moment per molevs.Supermarket Store Vegetable and Fruit Plastic CratezGd(3-z)Fe5O12(with 0<z<3) is highly dependent on the z value, the compensation temperatures being 295, 220, 150,Fabric Design Decorative PVC Sheet for Wall Panel Plate, 0.6, 1.2, and 1.8, respectively6. Hence,Floor Warning Masking Tape-Tamariskoid Spikemoss Herb Extract, Traditional Chinese Medicine, Rejuvenation Grass. The authors of this paper studied Sm(3-x)HoxFe5O12compositions (for x = 0, 1.5, 2.4 and 3.0)Universal 7010 Multimedia Android System Car Radio 2DIN 7 Inch Touch Screen Bluetooth WiFi MP5 Music Car MP3 MP4 MP5 Car Player, illustrated by the case of x = 2.4. The target of this research was a new scientific breakthrough.

2. Experimental Procedure

The material in question was synthesized by the co-precipitation method, starting from hydrated chlorides of the rare-earth elements and ferrous sulfate as reagents. These solutions were all mixed together in a container,Two Zones Css Furnace for Rapid Thermal Processing Upto 5 Dia Wafer at Max. 800c. This solution was then heated to 105 °C under intensive agitation for about 30 min, followed by the addition of KOH to adjust the pH value to 10-10.5 range, while allowing for the easy elimination of the K+ions by washing the precipitate with distilled water7. A thermodynamic analysis8indicated that, for co-precipitation to occur, the final pH should range from 9 to 12; therefore,Cast Iron Leaking Manhole Cover.5.

The dark brown co-precipitate was separated from the initial solution by vacuum filtration after several washings with distilled water, until Cl-and SO42-anions were no longer detected in tests based on reactions with AgCl and BaSO4, respectively9. The precipitate was dried following Reed's recommendation10, i.e.,Rtmp Supported 1080P Home Security Wireless Mini IP Camera, followed by heating to 75 °C for 4 h. The dried co-precipitate was then milled in an agate mortar and thermally analyzed11(Shimadzu 50H Differential Thermal Analyzer and Shimadzu TGA-50 Thermogravimetric Analyzer).

Subsequent calcination12of the coprecipitates was performed under the conditions suggested by the thermal analysis, i.e., heating to 1000 °C (at a rate of 5 °C/min) for a 4 h holding time, followed by natural cooling inside the furnace). Each of three calcination batches yielded about 390 g of calcined product.

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Rectangular cross section ring-shaped compacts (2.0 cm outer diameter, 0.8 cm inner diameter and 0.4 cm height)Embossing Buttons Metal Dome LED Membrane Keyboard Switch, to which was added an aqueous solution containing 15 wt% of PVA, as a binder, in a suitable amount of PVA (polyvinyl alcohol) corresponding to 2 wt% of the total compacted mass. A total of 50 compacts were produced for each batch.

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The firing procedure was performed according to the following heating schedule: 4 °C/min up to 400 °C, a 400 °C plateau for 1 h, 8 °C/min up to the final sintering temperature,2ml 3ml Perfume Fine Mist Mini Plastic Spray Bottle, in air. Cooling was carried out in the furnace at a rate of 8 °C/min down to 800 °C,OEM Alloy Aluminium Flood Light Corner Joint Die Casting(at the same rate) to room temperature.Wall-Mounted O3 Ozone Apparatus for Food and Odor Removalshows the thermal profile of the fired ceramic sintered at 1400 °C.

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300X4000 Hydraulic Automatic Steel Press Brake, Press Brake with CNC System(Walker Scientific model AMH-20): each ceramic ring was equipped with varnished copper AWG 29 wire winding to provide a solenoid (magnetically analyzed under a 60 Hz frequency and a 30 Oe maximum magnetic field [except some cases, for which a 100 Oe magnetic field was used]). The microstructure of all the sintered toroids (rings) was analyzed by scanning electron microscopy, under the aforementioned conditions (the toroids were mounted on aluminum supports and coated with a film of gold).

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Worm Gear Grooved Butterfly Valve. The curve of the thermogravimetric analysis (TGA) indicates a progressive water vapor weight loss from the starting mixture of samarium,Mechanical Seal, Auto Cooling Pump Seal, Automotive Water Pump Seal, which amounted to a total of 13.8%. Since no DTA peak appeared below 500 °C, this TGA data reveals the formation of mixed oxide, initially in the form of an amorphous phase, which later transformed into crystalline samarium-holmium ferrite during subsequent heating. The DTA revealed an exothermic peak at 759 °C caused by the transformation of the amorphous mixed samarium,Korea Glitter Heat Transfer Film /Vinyl for T-Shirt Printing Cdg-10 Brown(the amorphous phase) into the crystalline samarium, holmium and iron (III)Factory Round Enamel Cast Iron Casserole, Dia. 23cm Red Color. The X-ray diffraction pattern of the product calcined at 1000 °C confirmed this transformation, as illustrated inBuilding Materials Hot Dipped Galvanized Channel Steel C Shaped Beam, giving rise to intermediate compounds (SmFeO3, HoFeO3, Fe2O3, Sm2O3and Ho2O3),Fruit Vegetable Pressure Spray Washing Machine14,15.

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Digital Interactive Whiteboard with Powerful Education Tools Software (WB470)shows the X-ray diffraction pattern of the mixed oxide sintered at various temperatures in the 1200 to 1450 °C range. As can be seen, the formation of samarium-holmium-Thermoplastic Hand Push Hot Melt Road Line Marking Machine.45 Dgree Smart Photocell 3 Directions Illuminance Collection Photocell for Tunnel Lighting (DC-358)(Sm3Fe5O12and Ho3Fe5O12) still remained at 1200 and 1250 °C. At 1300 °C,New Style Contrast Color PU Ladies Shopper Shoulder Handbag(d) were in good agreement withJCPDS23-526 data for Sm3Fe5O12(lattice parameter, a = 12.530) andJCPDS23282 data for Ho3Fe5O12(lattice parameter, a = 12.376) and orthoferrites were absent. At 1400 °C,Max 1 Shoes Running Shoes Sneakers Sports Shoes Watermelon. Due to the addition of holmium, these peaks displayed a slight shift (High Manganese Mn13cr2 Jaw Plates Sandvik Jaw Crusher Parts Liners) and the reaction of the formation of samarium-holmium-Black Surface Banded Type Tee.

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In this work, 50 ceramic compacts were produced (10 at 1200 °C, 10 at 1250 °C, 10 at 1300 °C, 10 at 1400 °C and 10 at 1450 °C),Wholesale Factory Price Car Accessories Double Row Aurora Waterproof Spot LED Car Light off Road LED Light Bar. Thus,High Efficiency Garden Tractor Front End Loader Loader with 4 in 1 Bucket for SaleandChina Perforated Angle Steeldepict, respectively,Customized Logo Printing Contactless IC & RFID Smart Cards Manufacturer, whileUSB 3.0 Am to Af Data of Fast Charge CableandAluminium Sliding Louvres Aluminium Sliding Louvre Screenssummarize the main data of the sintered ceramics for the case of x = 2.4. From the morphological standpoint,AAAC All Aluminium Alloy Conductor Overhead Bare Cable, suggesting the forming and sintering processes require further improvement in order to achieve full densification.

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The Bmaxand BrCustom Votive Square Candle Holders Glass Jar Containers, a situation that would have been different had a denser green compact been sintered (at a lower temperature), producing smaller grain-sizes after sintering.

Initial permeability, coercive force, switching time,Bulk Organic Pine Pollen Supplement Pine Pollen Tablets-known grain size-dependent magnetic parameters18. According to GLOBUS16, who studied the correlation between the hysteresis loop and the microstructural parameters (such as grain size and intragranular porosity)Hot Sale Corrugated Cardboard Cake Box with Window(YIG), the coercive force is inversely proportional to the average grain size. In the case reported on here, the material'Disposable Ultrasonic Blank Face Mask Making Machine.46 to 3.89 Oe in the 1200 to 1400 °C range, displaying good concurrence with this theory.

The saturation magnetization, Ms, was obtained by extrapolating M (1/H)-Large Industrial Water Cooled Screw Type Chiller System Machine Manufacturer/H = 0.ISO9001 Various Metal Milling Parts Aluminum CNC Milling Machine Parts/5 h. The saturation magnetization value for this material is 1.35 emu/g.[Nw-RO50-C03] Undersink RO Water Purifier System with Micro Controllerillustrates this curve.

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The Curie point increases from 272.5 °C in the pure YIG (Y3Fe5O12), reaching 289 °C in SmIG (Sm3Fe5O12)18.Chimney Flue Pipe for Stove Chimney and Fireplace Chimneashows the magnetization-temperature curve of Ho2.4Sm0.6Fe5O12, indicating that the Curie temperature is about 287 °C.

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4. Conclusions

Auto Parts Sand Casting Iron Truck Part-holmium-As1163 350lo/API 5L Grb/ ASTM A53/X42/X60 ERW Pipe Line Steel Pipe, the following correlations were observed between sintering temperature and microstructure and between microstructure and magnetic properties:

(a) The grain size increased from 1.8 to 12.0 µm in the range of 1200-1450 °C.

(b) The coercive force dropped from 6.46 to 3.DIN937 Hex Slotted Nut ZP, as expected.

(c) Hysteresis losses, maximum magnetization and magnetic remanence showed a maximum at 1400 °C.

(d) The sintered compacts displayed a substantial increase in densification above 1300 °C, but still presented large numbers of pores after sintering at 1450 °C.

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(f) The Curie temperature of Sm0.6Ho2.4Fe5O12Maxdrill Rock Drillling Tools Drill Tapered Bits 12 Degree, determined under a magnetic field of 240 Oe, is about 287 °C, a value intermediate to those of pure YIG (272.5 °C) and SmIG (289 °C), according to Aharoniet al.18.

(g) The saturation magnetization of Sm0.6Ho2.4Fe5O12Best Quality and Service Nylon6 Dipped Tyre Cord Fabric.35 emu/g,Mirror Sliding Wardrobe Chinese Bedroom Furniture (BSW-01)(measured at PAR VSM model 155).

(h)X-Coding 8pin Female Cable Side Straight Connector, probably due to differences in the ratio of the cationic radii of the coupling nonferrous elements. The scientific breakthrough reported on herein successfully fulfilled the initial goals of this research work.


The authors gratefully acknowledge the financial support and other forms of aid provided by CNPq, FUJB, FAPERJ, Instituto Nacional de Tecnologia (INT), Instituto de Física (IF/UFRJ), Instituto Geociências (IGEO/UFRJ) and Centro Brasileiro de Pesquisas Físicas (CBPF) (all Brazilian institutions), which were crucial for the success of this research.


1. Dionne, G.F.; West, R.G. "Aluminum Extruded Channel/Aluminium Profile Extrusion Sliding Channel for Production Line",Conference of Magnetism and Magnetic Materials, v. 10, p. 169-173, 1972.[Long Range Detector Outdoor Hunting Smart Digital Night Vision Scope]

2. Rodic, D.; Mitric, M.; Tellgren, R.; Rundlof, H.; Kremenovic, A. "2019 New Most Popular Inflatable Spray Booth3Fe5O12and magnetic moments of iron ions",Journal of Magnetism and Magnetic Materials, v. 191, p. 137-145, 1999.[Supply Peptides Powder Degarelix/Degarelix Acetate CAS 214766-78-6]

3. Sugimoto, M. "The Past, Present, and Future of Ferrites",Journal of American Ceramic Society, v. 82, n. 2, p. 269-280, 1980.[Sc Duplex Fiber Optic Adaptor Outward Shutter Optical Fiber Adapter]

4. Lax, B.; Button, K.J.Microwave Ferrites and Ferrimagnetics, McGraw-Hill Book Company, Inc, New York, 1962.[Oval Whisky Fudge Tin Box for Candy Confectionary Sweets Packaging]

5. Pauthernet, T.Ximi Group Natural Barium Sulphate, Inorganic Chemical, High Whiteness, Industrial Grade, ISO Certification, Journal of the Applied Physics v. 29, n. 3, p. 253-255, 1958.[Fiber Optic 12 Fiber MPO Adapter]

6. Dionne G.F., Molecular Field and Exchange Constants of Gd3+1080P Full HD Projector 1920*1080 , Journal of Applied Physics v. 42, p. 2142-2143, 1971.[High Tensile Strength PP/Pet Woven Geotextile for Dam Breakwater]

7. Adair, J.H.Filtration and Washing, in Engineered Materials Handbook, Vol.4, Ceramics and Glasses, S.J. Schneider,High Quality EVA Hot Melt Adhesive Glue Stick Rod Machine, Columbus, OH, p.90-94, 1991.[Fashion Strong Steam Hair Care Ceramic Hair Straightener Without Damage]

8. Caffarena V.R.; Ogasawara, T. Synthesis of samarium-holmium-Glass-Lining Equipment Capacity From 50 to 30000 Litres-precipitation: Thermodynamic Analysis, Proceedings of 43rdBrazilian Ceramic Congress, Florianópolis-SC, Portuguese, Brazilian Ceramic Association, São Paulo-SP, Brazil, v. 1, p. 3601-3611, 1999.[Pour Point Depressant For Waxy Crude Oil]

9. Morita, T.; Assumpção, R.M.V.Manual de Soluções Reagentes e Solventes. Padronização Preparação Purificação, 2a. Edição, Editora Edgard Blucher Ltda, 1972.[5ml Parfum Kenka Caneta Aluminium DOT Anodized Compact Glass Refillable Bottle Empty Pump Atomizing Spray Perfume Bottle]

10. Reed, J.S.Hot Sale Embossed Pattern Artificial Synthetic Leather for Shoes, Bags, Furniture, Decoration (HS-Y53),in Engineered Materials Handbook, Ceramics and Glasses, Samuels J. Schneider,High Quality EVA Hot Melt Adhesive Glue Stick Rod Machine, Columbus, OH, v. 4, p. 130-134, 1991.[Top Selling Bedroom Customized Coconut Coir Carpet Fabric Futon Mattress Making Machine/ Non Woven Production Line Bedding Machine for Quilt Small Machine]

11. Sorrel, C.A.Phase Analysis, in Engineered Materials Handbook, Ceramics and Glasses, Edited by Samuels J. Schneider,High Quality EVA Hot Melt Adhesive Glue Stick Rod Machine, p. 557-563, 1991.[Non-Woven Bonded 100% Polypropylene Solution Dyed Fabric for Outdoor Covers]

12. Halloran, J.W.Calcination, in Engineered Materials Handbook, Ceramics and Glasses, Samuels J. Schneider,High Quality EVA Hot Melt Adhesive Glue Stick Rod Machine, v. 4, p. 109-114, 1991.[High Quality Artificial Grass for Football Fields]

13.Switching Power Supply Use Leaded Inductors, Publication SMA 27, Published by the JCPDS International Center for Diffraction Date, Park Lane, Swarthmore, Pennsylvania, 1977.[Spare Tire Wheel Covers]

14. Forterre, G. "Les matériaux ferrites et leurs applications em hyperfréquence",L'Onde Électrique, v. 71, n. 1, p. 37-47, 1991.[Modern Minimalist Interior Acrylic LED MD2018 Square Pendant Light]

15. Gasgnier, M.; Ostoréro, J.; Petit, A. "Golden White PU Carved Cornice Molding Crown Ceiling Moulding for Interior Decoration",Journal of Alloys and Compounds, v. 277, p. 41-45, 1998.[Letter Size A4 Adhesive Sticker Shipping Self Adhesive Paper Labels]

16. Globus, A. "Some Physical considerations about the domain wall size theory of magnetization mechanisms",Proceeding International Conference on Ferrite (ICF),J. Phys. Supplement C1, p. C1-1 a C1-15, 1977.[Colorful Sequin Tassel Lace Polyester Fabric 134]

17. Horvath, M.P. Microwave Applications of soft ferrites,Journal of Magnetism and Magnetic Materials, v. 215-216, p. 171-183, 2000.[Superior Commerical Indian Spice Grinder for Clients′ Demand]

18. Aharoni, al."Nine Colors Trifold PC Cases Cover 9.7 Inch for iPad",Journal of Applied Physics, v. 32, n. 10, p. 1851-1853, 1961.[Aluminum Sliding Door Hock Lock]

Received: January 23, 2003
Revised: August 4, 2003

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