02-04 of November 2007

Professor Dr. Peter W. Egolf visited Moscow.

02-04 of November 2007, on the invitation of Russian Magnetic Society, President of the Working Party on Magnetic Refrigeration of the International Institute of Refrigeration Prof. Dr. Peter W. Egolf together with his assistant Andrej Kitanovski visited Physics Department of Moscow State University and also AMT&C Ltd., Troitsk. After his visit Dr. Peter W. Egolf said: "I was impressed by the high quality of the AMT&C product range from a simple magnetic metal piece pick-up device for police applications to the highly sophisticated apparatus to measure the dynamical behaviour of first-order magnetic transitions in magneto caloric materials as it is required by leading scientific research divisions at Universities working in the field of magnetism".

31.12.05

AMTC’s house-warming

AMTC has got new comfortable three-storey building. It was built in record short terms – from July, 2005 to the end of December, 2005 and AMTC staff celebrated New Year 2006 in new building. The ground floor assigned for model shop and on other two floors there are offices equipped with modern facilities. The roomy offices have large scenic windows and modern communication equipment: dedicated phone lines, high-speed Internet, powerful modern computers. The total building area is 700 sq. meters.

AMTC has 1 hectare site in Troitsk industrial zone. Besides the building described above two new large buildings will be placed here. New buildings will be intended for production of permanent magnet systems and equipment for magnetic, magnetothermal and magnetocaloric measurements.

15.05.05

Professor K.J.H. Buschow visited Moscow.

Professor of University of Amsterdam, well-known specialist on physics of magnetism of rare earth metals and compounds and permanent magnets, editor of Journal of Alloys and Compounds and Handbook of Magnetic Materials K.J.H. Buschow visited Moscow on May, 10 –13 and gave lecture “Studying of permanent magnets materials and other similar intermetallic compounds” in Physics Faculty of M.V. Lomonosov Moscow State University.

Advanced Magnetic Technologies and Consulting, Ltd. provided financial support of the visit.
Pictures: Prof. Buschow on the lecture.

28.02.05

Representatives of Samsung headed by the company vice-president Hideo Nojima visited AMT&C

Representatives of Samsung headed by the company vice-president Hideo Nojima visited Advanced Magnetic Technologies and Consulting, Ltd. on February, 28. The aim of the visit was discussion of the perspectives of magnetic refrigeration technology and possibilities of its realization at present time. Representatives of Samsung listened to the report given by a head of AMTC R&DD and took part in the discussion.

20.02.05

AMT&C won a grant CRDF

Advanced Magnetic Technologies and Consulting, Ltd. and Astronautics Corporation of America won a grant of the US Civilian Research and Development Foundation (CRDF) for their joint project “Advanced working bodies for room temperature magnetic refrigerators”. The project is aimed at the development of new highly effective material, which can be used as working bodies of room temperature magnetic cooling devices, and has duration for one year.

15.02.05

Trademark of AMT&C group is registrated.

01.11.04

AMT&C Group took out a new patent.

The patent has a title “Magnetic polymeric composition for radiofrequency articles” and concernes new materials, which can be applied in high frequency electronic. The materials comprise a polymeric matrix with uniformely distributed magneic single domain nanoparticles chemically bonded with the matrix. The particles are formed in the matrix during fabrication process as a result of thermal decomposition of metal-containing compounds. Magnetic properties of the material can be adjusted choosing the matrix material, particles composition and fabrication regimes. The material can be processed using standart plastic technology.

http://www.ndfeb.ru/patents.htm

07.10.04

Norilski Nikel and AMT&C concluded a treaty…

Norilski Nikel and AMT&C concluded a treaty to conduct a study on estimation of perspectives of a market of materials using as working bodies in magnetic heat machines. Magnetic cooling devices have essential advantages in comparison with modern traditional refrigerators working on vapor-gas cycle – first of all these are higher ecological and economic characteristics. The work on magnetic cooling technology is intensively conducted now in universities, laboratories and research centers of Europe, USA, Japan and China.

10.09.03

New book is published...

The Institute of Physics Publishing Ltd. is announced a publication of the following book:

The Magnetocaloric Effect and its Applications
A M Tishin, Physics Faculty, M V Lomonosov Moscow State University, Russia; Y I Spichkin, Head of Research and Development, Advanced Magnetic Technologies and Consulting Ltd., Russia

The magnetocaloric effect describes the change in temperature of a magnetic material under adiabatic conditions through the application or removal of an external magnetic field. This effect is particularly pronounced at temperatures and fields corresponding to magnetic phase transitions, and it is a powerful and widely used tool for investigation of the magnetic state and mechanisms of these transitions. More recently there has been significant interest in its possible exploitation in magnetic refrigeration and cryocooling systems.
We are rather glad inform our clients and colleagues about this events, especially because the authors of this book being leading scientists of the Group AMT&C.

23.04.03

The contract on development of a vibrating sample magnetometer is made

The AMTC group (Advanced Magnetic Technologies and Consulting, Ltd. and Magnetic and cryoelectronic systems, Ltd.) has made a competitive contract on development of automated compact vibrating sample magnetometer with State Foundation on Promotion of Small Business in Science and Technology. The Institute of Earth Magnetism and Radio Waves (IZMIRAN) of Russian Academy of Science will also take part in the project.

The apparatus is based on the supersensitive cryogenic preamplifier and is intended for measurements of magnetic parameters (magnetization, hysteretic loops, etc.) in the temperature range from 77 to 400 K and in magnetic fields up to 2.5 kOe. It can be used in scientific laboratories, universities and in industry.

Besides the development of the magnetometer the contract goal is its commercialization. The technical parameters of the magnetometer should be on the level of the best domestic and foreign analogues; its weight, size and price should be essentially reduced (the price in 2-3 times).

The work will begin at May 2003 and will be finished at April 2004.

26.02.03

AMT&C becomes an exclusive distributor of Tianjiao International Trading Co.(USA), Inc., DBA Baotou Steel & Rare Earth Co.

Baiyunebo Mine

On this week AMT&C concluded the agreement about excusive distributor status with American company Tianjiao International Trading Co.(USA), Inc., DBA Baotou Steel & Rare Earth Co., which is owned by the largest China company on rare earth materials mining and processing - Baotou Iron & Steel Company. Below is the information about the main directions of the Baotou company activity. We hope that our company can offer you high quality products of Baotou you are interested in by suitable prices.

The Largest Rare Earth Manufacturer in China.

Baotou Iron & Steel Company specializes in supplying rare earth metals, alloys, oxides, acetates, carbonates, chlorides, fluorides, hydroxides, nitrates, oxalates, concentrates, polishing powder andphosphor. We also supply large quantities of steel products. Tianjiao International Trading Co.(USA), Inc., DBA Baotou Steel & Rare Earth Co., is a wholly owned USA subsidiary and exclusive agent of Baotou Iron & Steel Company which ranks the Largest Rare Earth Co., the 5th largest steel company and the 24th largest enterprise in China.

Baotou Iron & Steel Co. can supplies iron and steel products conform to ASTM and API standards, including steel pipe, steel bar, steel coil and wire. Baotou Iron & Steel Co. owns the world famous Baiyunebo Mine which hoards up about 77% of rare earth deposit in the world, and has rare earth factories that can produce RE compounds, Individual RE oxides (2N~6N), individual RE metals (2N~5N), RE salts, RE coprecipitate, RE alloys, mischmetal, RE glass polishing powders, phosphor, yttrium oxide and metal (2N~6N), scandium oxide and metal (2N~6N), and other RE products required by customers.

Baotou Iron & Steel Co. also owns a rare earth research institute (Baotou Research Institute of Rare Earth), which carries out comprehensive scientific researches and technological developments concerning rare earths and rare earth based materials. In 1991, Baotou Iron & Steel Co. incorporated Baotou Steel & Rare Earth Enterprises Group which includes RE factories in North of China. The Baotou company is authorized by many other rare earth factories (ISO9002 Certified) to be their agents. Also, it represents the China Rare Earth Information Center in foreign countries and provides "China Rare Earth Information" newsletters for its customers. During recent years, the company has established long-term relationship with a lot of rare earth consumers and became one of the largest rare earth suppliers in the USA. According to the business philosophy of the company "Quality First and Credit First", it is ready to offer excellent products and services for its customers.

http://www.baotou.com/profile.htm

15.11.02

What is the Ultramag™ from magnetic point of view?

AMT&C and Institute of High Temperature RAN applied a new method to conduct a joint research of magnetic field on the surface of magnetic polymer material Ultramag™ (commercial trademark of Group Arnold). Some of the results of research are presented in Figures (see below). During the process of work it was found that the value of the field close to back surface of the material is about few tens of Oe. The distributions, shown on the figures, got with distance equal to 7mm (between surfarce and GMI sensor). They are at the few Oe level. It can be seen that periodic structures with 4-5 mm are coexisting with small percularities . In the case of investigation of the face side of material this non periodic signal is especcially large.

During this investigation a novel advanced GMI scanner has been used. This method can be widely used for investigation of small percularities of distribution of magnetic field under different kind of magnetic bodies. From our point of view, one of the closest applications of this method is the inspection of small cracks in metallic sheets and tubes. We believe that this study will give a push of wide utilisation of this method for practical needs.

So, from one side the data of the investigation proovely shows the potential of the new method. From other side it shows that the magnetic field, which was generated by the card, made from Ultramag™ material, at the distance of 7-10 millimetres is close to the magnetic field of the Earth (near 1 Oe). Thus, it follows, that such a card at the distance of few millimetres can't make any harm to such a magnetic information storage medias as credit cards, magnetophone/dictophone tape, floppies, driver's cards, smartcards and any other types of documents or such items with magnetic strip.

Advanced Magnetic Technologies and Consulting has concluded the treaty with Department of Small Business Support and Development of Moscow for working out the project called "Magnetic Foam". The project is directed for development of the methods of preparation of solid and liquid foams with magnetic properties.

Magnetic foams can be fabricated in solid and liquid forms. Their magnetic properties are determined by magnetic nanoparticles incorporated into the cavity walls. The main problem in the foams fabrication is that the commercially available magnetic powders contain the particles with dimensions of about micrometer. At the same time the foam cavity wall thickness is about several hundred nanometers. That means that such powder will destroy the foam. To preserve the foam it is necessary to use the magnetic particles of nanometer range sizes. Advanced Magnetic technologies and Consulting company conducts development of the methods allowing to form and introduce the magnetic nanoparticles into the foam cavities walls during the process of the foam production. With application of appropriate chemical technological scheme it is possible to prepare foams containing magnetic nanoparticles with soft or hard magnetic properties - metallic nanoparticles (Fe, Co, Ni, etc.), including the particles with complex composition, nanoparticles of various oxides (such as various magnetic ferrites, etc.) and nanoparticles on the basis of other magnetic compounds. The process of magnetic foams fabrication is in general features analogous to that which is used for preparation of magnetic liquids.

Among possible application of the magnetic foams it is necessary to distinguish two main applications:
1. solid foam for absorption and shielding of electromagnetic radiofrequency radiation;
2. liquid magnetic foam for collection of oil or other hydrophobic pollution from water or solid surface.

Solid magnetic foam for absorption of radio waves can be prepared on the basis of soft magnetic ferrites, which possess good absorption properties for radiofrequency radiation. Presence of cavities of various diameters in the foam (and consequently absorption units consisting of magnetic nanoparticles) makes it possible to provide the absorption properties in wide range of frequencies. The magnetic and absorption properties of the foam can be regulated in wide range by choosing of the particles material and dimensions. It is also possible to create multilayered covering using solid magnetic foams with different magnetic properties in order to provide change of magnetic and dielectric permeability on the cover thickness necessary to obtain maximum absorption effect. The magnetic solid foam can be easy, fast and cheaply deposited on the surfaces even with complex form.

Liquid foam with residual magnetization can be used as highly effective material for collection hydrophobic pollutions (oil and other spills, etc.) from the surface of water or solid body because it is attracted by magnets. Such foam should contain magnetic nanoparticles with hard magnetic properties. Liquid foams themselves have good ability to absorb oil or other hydrophobic products. Besides, liquid foams can be easily destructed in order to extract absorbed products. The problem is in collection of the foam containing absorbed pollution. There are many different methods of hydrophobic pollution collection from water or solid body surface. Among them mechanical, biological, physical and chemical methods can be mentioned. The general drawback of the listed methods - their low productivity. In particular, mechanical methods do not allow to collect thin films on the water surface and are useful only for collection of big oil spills. Such method as burning is rather dangerous and produces products of burning harmful for nature. Biological methods require much time and elevated temperatures.

Using of the magnetic liquid foam can essentially increase effectiveness of hydrophobic pollution collection from water or solid body surface. Besides application of the magnetic foam is effective for collection of thin oil films from water surface. The magnetic foam is hydrophobic and can be stable on water surface for tenths of minutes. At the same time the process of pollution absorption takes several minutes. Rapid absorption of the pollution by the foam allows to begin the process of the foam collection practically immediately with the help of magnetic pick-up devices. High speed of the foam generation makes it possible to cover the removing spill repeatedly. Such repeated treatment of the oil pollution can essentially increase the effectiveness of the its removing. The foam can be produced in large quantities on the place of pollution (i.e. on the ships or seaports), which is especially important because in accordance with international agreements seaports should have special equipment for removing the oil pollutions. The mentioned potential advantages of the magnetic foams using for oil pollution removing make development of the method of its production very actual task.