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   Shielding Materials

Electromagnetic shielding is the process of limiting the flow of electromagnetic fields between two locations, by separating them with a barrier made of conductive material. Typically it is applied to enclosures, separating electrical devices from the 'outside world', and to cables, separating wires from the environment the cable runs through. Electromagnetic shielding used to block radiofrequency electromagnetic radiation is also known as RF shielding.

The shielding can reduce the coupling of radio waves, visible light, electromagnetic fields and electrostatic fields, though not static magnetic fields. (A conductive enclosure used to block electrostatic fields is also known as a Faraday cage.) The amount of reduction depends very much upon the material used, its thickness, and the frequency of the fields of interest.



Bronze Partners
Acheson Electronic Materials
Ad-Vance Magnetics, Inc.
Adhesives Research
ARC Technologies
Chomerics, Division of Parker Hannifin
Cuming Microwave
Cybershield
Eclipse Shielding
Elna Magnetics
Emerson & Cuming
ETS-Lindgren
Fair-Rite Products
Intermark (USA)
JEMIC Shielding Technology
Laird Technologies
Leader Tech
Magnetic Shield Corp.
Marktek
Metex Corporation
Omega Shielding Products, Inc.
Orion Industries Inc
Rohm and Haas Electronic Materials
RTP Company
Select Fabricators Inc
Shielding Express
Silver Cloud Mfg. Co.
Spira Manufacturing
Sulzer-Metco (U.S.), Inc.
Swift Textile Metalizing LLC
Tech-Etch, Inc.
Tecknit Inc.
Tempest Security Systems
The MuShield Company Inc.
Vanguard Products Corporation
Zippertubing Company
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Books
Showcasing EMI Shielding Materials.: An article from: Electronic Materials Update

Emc Shielding Materials
J. W. Molyneux-Child

Electromagnetic Shielding Materials and Performance
Don White

Physico-Chemistry of Elastomer Heat-Shielding Materials
A. A. Donskoi

Shielding materials for nuclear reactors (International series of monographs on nuclear energy. Division VII, reactor engineering) (International series of monographs on nuclear energy. Division VII, reactor engineering)
Aleksandr Nikolaevich KomarovskiiÌ

A Handbook on Electromagnetic Shielding Materials and Performance
Donald R. J White

Material ConneXion: The Global Resource of New and Innovative Materials for Architects, Artists and Designers
George Beylerian, Andrew Dent, and Anita Moryadas

Excerpt - page 53: "... requiring a relatively small voltage. 4453-01 9 FLAME-RETARDANT ELASTOMER A shielding material made of a silicone elastomer fitted with nickel-coated graphite particles ..."
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Grounding and Shielding Techniques
Ralph Morrison

Excerpt - page 82: "... Also there are a few designs where this type of shielding is necessary. These transformer shields ... also be shielded. The shielding material is often copper, but it can be aluminum. 5.6 THE ..."
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Solutions Manual to accompany Engineering Materials Science
Milton Ohring

Excerpt - page 145: "... 14-13 Magnetic shielding materials protect electrical instruments and systems from interference by external magnetic ..."
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Structure and Bonding in Crystalline Materials
Gregory S. Rohrer

Excerpt - page 207: "... density. For this reason, Pb (Z= 82) is a common material for X-ray shielding and Be (Z=4) and lithium borate glasses are used as ..."
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Materials for Electronic Packaging
Deborah Chung

Excerpt - page 35: "... of carbon fiber composites for heat sinks. 1.9 Electromagnetic Interference Shielding With the increasing sensitivity and ... receiving more attention. The shielding material is an electrical conductor used in the form of an ..."
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Naturally Occurring Radioactive Materials: Principles and Practices
Rick Irvin

Excerpt - page 100: "... penetrating ability of the radiation and the properties of the shielding material. This concept has not been deliberately employed to protect personnel ..."
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Ceramic Processing and Sintering, Second Edition, (Materials Engineering)
Mohamed N. Rahaman

Excerpt - page 5: "... crucibles) Artificial tooth root, bone and joint. Nuclear fuels Cladding materials Shielding materials Source: Ref. I. Chemical Composition i// Ceramic Fabrication (Intrinsic) ..."
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Materials: Degradation and Its Control by Surface Engineering
Andrew W. Batchelor, Loh Nee Lam, and Margam Chandrasekaran

Excerpt - page 5: "... water and oxygen. The range of techniques available to prevent materials degradation by shielding has expanded enormously in recent years. The principal of shielding ..."
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Hazardous Materials Chemistry for Emergency Responders, Second Edition
Robert Burke

Excerpt - page 69: "... surfaces, as ballast for missile reentry vehicles, and as a shielding material. Uranium metal is used for x-ray targets for production of ..."
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Applied Materials Science: Applications of Engineering Materials in Structural, Electronics, Thermal, and Other Industri
Deborah D. L. Chung

Excerpt - page 12: "... alleviate this problem, radiation sources and electronics are shielded by materials that reflect and/or absorb radiation. Chapter 4 addresses shielding materials. 1.7 BIOMEDICAL APPLICATIONS Biomedical applications pertain to the diagnosis ..."
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Intelligent Macromolecules for Smart Devices: From Materials Synthesis to Device Applications (Engineering Materials and Processes)
Liming Dai

Excerpt - page 323: "... electromagnetic wave incident on to the surface of conjugated polymer-based shielding materials can be resolved into: a) direct reflected wave (R): b) ..."
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X-Ray Diffraction Procedures: For Polycrystalline and Amorphous Materials, 2nd Edition
Harold P. Klug and Leroy E. Alexander

Excerpt - page 96: "... likewise enters into the calculation of the necessary thickness of shielding materials for x-ray protection. The heavy elements are the most efficient ..."
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Glass: Materials for Inspirational Design
Chris Lefteri

Excerpt - page 74: "... 65% lead oxide is used in applications that require radiation shielding. Material Properties tableware and ashtrays; stems and bases for lamps and ..."
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Area Array Packaging Materials: Adhesives, Pastes, and Lead-Free
Ken Gilleo

Excerpt - page 64: "... tackiness, and high conductivity make solder paste the most viable material for SMT assembly manufacturing. It ... conductive adhesives, electromagnetic interference (EMI) shielding materials, brazing pastes. and other products that are composed of ..."
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Protection of Materials and Structures from Space Environment: ICPMSE-6 (Space Technology Proceedings)
J. Kleiman and Zelina Iskanderova

Excerpt - page 32: "... cosmic ray interaction with the relatively thick ISS structure and shielding materials [6]. Vehicle size (L) and velocity (v), combined with the ..."
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Grounding & Shielding In Facilities
Morrison and LEWIS

Excerpt - page 195: "... thin wire mesh or a coating of conductive paint as shielding material. It takes its name from the early screened rooms that ..."
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Architectural Electromagnetic Shielding Handbook: A Design and Specification Guide
Leland H. Hemming

Excerpt - page 13: "... of these act differently depending on the nature of the shielding material present. Magnetic shielding below 100 kHz is difficult to achieve ..."
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Supercritical Fluid Technology in Materials Science and Engineering
Ya-Ping Sun

Excerpt - page 286: "... These charges can be neutralized by fibers coated with conducting materials such as polypyrrole. Packaging materials ... electronic security devices. Finally, electromagnetic shielding materials have been developed to eliminate spacecraft charging, which ..."
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Carbide, Nitride and Boride Materials Synthesis and Processing
A.W. Weimer

Excerpt - page 38: "... design and control, it would be possible to use SiC materials in thermoelectric energy conversion. The 10B isotope is a natural material for nuclear shielding applications and B4C pellets have been historically used in this ..."
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Handbook of Modern Ferromagnetic Materials (The International Series in Engineering and Computer Science)
Alex Goldman

Excerpt - page 4: "... electromagnet or a permanent magnet. While the two differ in materials used, the overall construction is ... magnetic field but. rather provides shielding against one. Ironically, the only method of shielding a sensitive ..."
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Nano and Microstructural Design of Advanced Materials
M. A. Meyers, M Sarikaya, and R. O. Ritchie

Excerpt - page 94: "... for magnetic disk memories for computers and as a magnetic shielding material, e.g. in turners. The main requirements for the film material ..."
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Materials Handling Handbook, 2nd Edition
American Society of Mechanical Engineers (ASME), International Material Management Society (IMMS), and Editor-in-Chief Raymond A. Kulwiec

Microstructure and Properties of Materials (Microstructure & Properties of Materials)
J. C. M. Li

Excerpt - page 183: "... shall change environments to prolong the service life of a material. For instance, residual or applied ... steel. Thermal, magnetic or electric shielding may improve the materials performances in a thermal, magnetic or ..."
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Hazardous Materials Chemistry
Armando S. Bevelacqua

Excerpt - page 2: "... law). 3. Quantity: limit the amount of the exposed radioactive material. 4. Shielding: put almost anything between yourself and the source. ..."
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UV Lasers: Effects and Applications in Materials Science
W. W. Duley

Excerpt - page 165: "... et al. 1993) have elucidated the rplayed by plume material in shielding the surface and chemical changes in the polymer that alter ..."
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Recognition of Health Hazards in Industry: A Review of Materials Processes, 2nd Edition
William A. Burgess

Excerpt - page 103: "... may include reduction of the physical work load by improved materials handling, shielding of furnaces to reduce the radiation load, and spot cooling ..."
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Ceramics: Mechanical Properties, Failure Behaviour, Materials Selection (Springer Series in Materials Science)
Dietrich Munz and Theo Fett

Excerpt - page 101: "... therefore: 9 The lifetimes are higher than for the same material without a shielding effect. ..."
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Radiation Effects in Advanced Semiconductor Materials and Devices
C. Claeys and E. Simoen

Excerpt - page 3: "... elements they may produce ionisation effects by passing thought the material. In this case shielding is not obvious and they will mainly cause Single Event ..."
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Site Characterization: Sampling and Analysis (Preserving the Legacy)
HMTRI (The Harzadous Materials Training and Research Institute)

Excerpt - page 82: "... the body, usually on a shirt pocket, with as little shielding material as possible between the devices and the source of radiation. ..."
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Hazardous Materials Characterization: Evaluation Methods, Procedures, and Considerations
Donald A. Shafer

Excerpt - page 90: "... Farther the distance from radioactive sources yields less exposure. 3. Shielding: Place protective materials between you and radioactive sources. ..."
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Electronic Filters, Amplifiers & Oscillators - Frequency Devices
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