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Title: Pseudo-icosahedral Cr 55 Al 232 - δ as a high-temperature protective material

Abstract

In this paper, we report here a course of basic research into the potential suitability of a pseudo-icosahedral Cr aluminide as a material for high temperature protective coatings. Cr 55Al 232-δ [δ = 2.70(6)] exhibits high hardness at room temperature as well as low thermal conductivity and excellent oxidation resistance at 973 K, with an oxidation rate comparable to those of softer, denser benchmark materials. Lastly, the origin of these promising properties can be traced to competing long-range and short-range symmetries within the pseudo-icosahedral crystal structure, suggesting new criteria for future materials research.

Authors:
 [1];  [2];  [1];  [3];  [4];  [4];  [1];  [1];  [1];  [5];  [5];  [5];  [5];  [6];  [6];  [7];  [2];  [3];  [1]
  1. Farmingdale State College, NY (United States). Department of Physics
  2. Clemson Univ., SC (United States). Department of Physics and Astronomy
  3. Texas A & M Univ., College Station, TX (United States). Department of Physics and Astronomy
  4. JEOL USA Incorporated, MA (United States)
  5. Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy
  6. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
  7. Farmingdale State College, NY (United States). Department of Mechanical Engineering Technology
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1435160
Alternate Identifier(s):
OSTI ID: 1426839
Report Number(s):
BNL-203573-2018-JAAM
Journal ID: ISSN 2475-9953
Grant/Contract Number:
SC0012704; AC02-98CH1886
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Materials
Additional Journal Information:
Journal Volume: 2; Journal Issue: 3; Journal ID: ISSN 2475-9953
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Rosa, R., Bhattacharya, S., Pabla, J., He, H., Misuraca, J., Nakajima, Y., Bender, A. D., Antonacci, A. K., Adrip, W., McNally, D. E., Zebro, A., Kamenov, P., Geschwind, G., Ghose, S., Dooryhee, E., Ibrahim, A., Tritt, T. M., Aronson, M. C., and Simonson, J. W. Pseudo-icosahedral Cr55Al232-δ as a high-temperature protective material. United States: N. p., 2018. Web. doi:10.1103/PhysRevMaterials.2.032401.
Rosa, R., Bhattacharya, S., Pabla, J., He, H., Misuraca, J., Nakajima, Y., Bender, A. D., Antonacci, A. K., Adrip, W., McNally, D. E., Zebro, A., Kamenov, P., Geschwind, G., Ghose, S., Dooryhee, E., Ibrahim, A., Tritt, T. M., Aronson, M. C., & Simonson, J. W. Pseudo-icosahedral Cr55Al232-δ as a high-temperature protective material. United States. doi:10.1103/PhysRevMaterials.2.032401.
Rosa, R., Bhattacharya, S., Pabla, J., He, H., Misuraca, J., Nakajima, Y., Bender, A. D., Antonacci, A. K., Adrip, W., McNally, D. E., Zebro, A., Kamenov, P., Geschwind, G., Ghose, S., Dooryhee, E., Ibrahim, A., Tritt, T. M., Aronson, M. C., and Simonson, J. W. Mon . "Pseudo-icosahedral Cr55Al232-δ as a high-temperature protective material". United States. doi:10.1103/PhysRevMaterials.2.032401.
@article{osti_1435160,
title = {Pseudo-icosahedral Cr55Al232-δ as a high-temperature protective material},
author = {Rosa, R. and Bhattacharya, S. and Pabla, J. and He, H. and Misuraca, J. and Nakajima, Y. and Bender, A. D. and Antonacci, A. K. and Adrip, W. and McNally, D. E. and Zebro, A. and Kamenov, P. and Geschwind, G. and Ghose, S. and Dooryhee, E. and Ibrahim, A. and Tritt, T. M. and Aronson, M. C. and Simonson, J. W.},
abstractNote = {In this paper, we report here a course of basic research into the potential suitability of a pseudo-icosahedral Cr aluminide as a material for high temperature protective coatings. Cr55Al232-δ [δ = 2.70(6)] exhibits high hardness at room temperature as well as low thermal conductivity and excellent oxidation resistance at 973 K, with an oxidation rate comparable to those of softer, denser benchmark materials. Lastly, the origin of these promising properties can be traced to competing long-range and short-range symmetries within the pseudo-icosahedral crystal structure, suggesting new criteria for future materials research.},
doi = {10.1103/PhysRevMaterials.2.032401},
journal = {Physical Review Materials},
number = 3,
volume = 2,
place = {United States},
year = {Mon Mar 19 00:00:00 EDT 2018},
month = {Mon Mar 19 00:00:00 EDT 2018}
}

Journal Article:
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