DOI: 10.1063/1.347769. Mechanically alloyed Sm-Co materials

10.1063/1.347769

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The preparation of SmCo5 magnets is based on a high-temperature heat treatment above 800 °C followed by a rapid cooling to room temperature. By mechanical alloying and a subsequent heat treatment, it is possible for the first time to prepare hard magnetic SmCo5 powder at low temperatures. The process involves first the formation of an amorphous precursor during milling, which then is transformed to the 1:5 structure at temperatures above 500 °C. The magnetically isotropic samples show a coercivity of 24 kA/cm and a remanence of 0.52 T. The process is also applicable to Sm2Co17. However, here the coercivity is less than 5 kA/cm and higher values require the formation of a precipitation-hardened microstructure. The stability of SmCo5 below 800 °C questions the eutectoid decomposition into Sm2Co17 and Sm2Co7.

Bibliography

Wecker, J., Katter, M., & Schultz, L. (1991). Mechanically alloyed Sm-Co materials. Journal of Applied Physics, 69(8), 6058â6060.

Authors 3

J. Wecker (first)
M. Katter (additional)
L. Schultz (additional)

References 17 Referenced 71

10.1007/BF03037835 / Metall. Trans. (1970)
10.1063/1.94213 / Appl. Phys. Lett. (1983)
10.1016/0022-3093(85)90005-5 / J. Non-Cryst. Solids (1985)
10.1063/1.96971 / Appl. Phys. Lett. (1986)
{'key': '2024020413260965300_r5', 'first-page': '117', 'volume': '64', 'year': '1989', 'journal-title': 'Appl. Phys. Lett.'} / Appl. Phys. Lett. (1989)
10.1063/1.338708 / J. Appl. Phys. (1987)
10.1063/1.102662 / Appl. Phys. Lett. (1990)
{'key': '2024020413260965300_r8'}
10.1063/1.104202 / Appl. Phys. Lett. (1990)
{'key': '2024020413260965300_r10', 'first-page': '51', 'volume': '7', 'year': '1986', 'journal-title': 'CALPHAD'} / CALPHAD (1986)
10.1016/0022-5088(88)90371-2 / J. Less-Common Met. (1988)
{'key': '2024020413260965300_r12', 'first-page': '67', 'volume': '29', 'year': '1972', 'journal-title': 'J. Less-Common Met.'} / J. Less-Common Met. (1972)
10.1063/1.324790 / J. Appl. Phys. (1978)
10.1063/1.334651 / J. Appl. Phys. (1985)
10.1063/1.345508 / J. Appl. Phys. (1990)
{'key': '2024020413260965300_r16'}
10.2320/jinstmet1952.49.3_168 / J. Jpn. Inst. Met. (1985)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:43 a.m.)
Deposited	1 year, 6 months ago (Feb. 4, 2024, 8:26 a.m.)
Indexed	1 year, 4 months ago (April 5, 2024, 6:59 a.m.)
Issued	34 years, 4 months ago (April 15, 1991)
Published	34 years, 4 months ago (April 15, 1991)
Published Print	34 years, 4 months ago (April 15, 1991)

Funders 0

None

BibTeX

@article{Wecker_1991, title={Mechanically alloyed Sm-Co materials}, volume={69}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.347769}, DOI={10.1063/1.347769}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Wecker, J. and Katter, M. and Schultz, L.}, year={1991}, month=apr, pages={6058–6060} }

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