1-20 of 24 Search Results for

ferromagnetic resonance

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006468
EISBN: 978-1-62708-190-0
... Abstract Magnetic-particle inspection is a method of locating surface and subsurface discontinuities in ferromagnetic materials. This article discusses the applications and advantages and limitations of magnetic-particle inspection. It describes magnetic fields in terms of magnetized ring...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006445
EISBN: 978-1-62708-190-0
... tomography, and gamma-ray density determination. The article also discusses the methods for automated nondestructive testing of pressed and sintered PM parts: acoustic methods-resonance testing, eddy current testing, magnetic bridge comparator testing, ultrasonic techniques, radiographic techniques, gamma...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003233
EISBN: 978-1-62708-199-3
..., magnetoresistive sensors, magnetic resonance sensors, and magneto-graphic sensors (in which the magnetic field at the surface of a part is registered on a magnetic tape pressed onto the surface). Most leakage-field testing applications require flaw detection and an estimate of the severity. Flaw...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.9781627082136
EISBN: 978-1-62708-213-6
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003154
EISBN: 978-1-62708-199-3
.... Permanent magnet materials are based on the cooperation of atomic and molecular moments within a magnet body to produce a high magnetic induction. This induced magnetization is retained because of a strong resistance to demagnetization. These materials are classified ferromagnetic or ferrimagnetic and do...
Book Chapter

By Sam Nasser
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005684
EISBN: 978-1-62708-198-6
... over stainless steel in such applications is that tantalum is not ferromagnetic, so the patient may undergo magnetic resonance image scanning following surgery without risk of disrupting the ligated blood vessel and surrounding tissues ( Ref 18 ). Similar implantable surgical clips have also been used...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005430
EISBN: 978-1-62708-196-2
... −23 to 10 −17 Electron microprobe ≥2 μm 10 −16 to 10 −12 Rutherford backscattering 50 nm 10 −20 to 10 −17 Nuclear reaction analysis 20–100 nm 5 × 10 −21 to 5 × 10 −16 Indirect Nuclear magnetic resonance … 10 −20 to 10 −9 Neutron inelastic scattering … 10 −11 to...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006471
EISBN: 978-1-62708-190-0
... magnetostrictive transducer requires that the ferromagnetic material being tested is in a magnetized state. This is achieved by applying a direct current bias magnetic field to a material by using either a permanent magnet (an electromagnet) or a residual magnetization induced in a material. A direct current bias...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
... 0.15 to 0.18 mm (0.006 to 0.007 in.) thick. For frequencies to 200 kHz, a ferrite core can be used. Above 200 kHz, no ferromagnetic core is used because significant losses can occur in ferrite at these higher frequencies. Output transformers are only used when the output voltage of the supply differs...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006465
EISBN: 978-1-62708-190-0
... careful postfabrication surface preparation, for example, milling or grinding, is performed prior to inspection ( Ref 17 ). Capable and widely applied, magnetic particle inspection will likely have applications in ferromagnetic alloy parts produced by AM. It is amenable to complex geometries and has...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003021
EISBN: 978-1-62708-200-6
... motion to the workpiece. The converter, booster, and horn must be resonant at the operating frequency. Fig. 24 Schematic of ultrasonic welding components The weldability of any polymer depends on the damping capacity, or attenuation characteristics, and size of the component being joined...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.9781627081788
EISBN: 978-1-62708-178-8
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006456
EISBN: 978-1-62708-190-0
... radiography and ultrasound, which are compared with XCT in Table 1 . Less common methods in industrial testing are nuclear tracer imaging, nuclear magnetic resonance imaging, and x-ray backscatter imaging. Acoustic emission, holography, and other techniques provide indirect or bulk information on the...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005685
EISBN: 978-1-62708-198-6
... height resolution of <1 Å can be obtained. In this mode, the probe cantilever is oscillated at or near its resonant frequency. The oscillating probe tip is then scanned at a height where it barely touches or taps the sample surface. The system monitors the probe position and vibrational amplitude to...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003062
EISBN: 978-1-62708-200-6
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006470
EISBN: 978-1-62708-190-0
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005673
EISBN: 978-1-62708-198-6
..., leaving less of it to form the K 1 carbide ( Ref 2 ). Martensitic stainless steels are essentially alloys of chromium and carbon that possess a distorted body-centered cubic (bcc) crystal structure (martensitic) in the hardened condition. They are ferromagnetic, hardenable by heat treatments, and...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006473
EISBN: 978-1-62708-190-0
... being inspected, and the exact thickness (within acceptable tolerance) at various positions is marked on the block. Either type of block can also be used as a reference standard for resonance inspection; the stepped block can further be used for transit-time inspection. Details of stepped blocks are...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005322
EISBN: 978-1-62708-187-0
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006677
EISBN: 978-1-62708-213-6
... mechanical connections between the source to the sample. The sample stage often has five degrees of freedom and therefore is vulnerable to resonant vibrations excited by ambient energy from acoustics, temperature changes, or floor vibrations. Hence, it is best practice to have these instruments installed on...