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Title: Simultaneous determination of high-temperature crystal structure and texture of synthetic porous cordierite

Journal Article · · Journal of Applied Crystallography (Online)
ORCiD logo [1]; ORCiD logo [2]
  1. Federal Inst. for Materials Research and Testing (BAM), Berlin (Germany); Univ. of Potsdam (Germany)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
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The evolution of the crystal structure and crystallographic texture of porous synthetic cordierite was studied by in situ high-temperature neutron diffraction up to 1373 K, providing the first in situ high-temperature texture measurement of this technologically important material. It was observed that the crystal texture slightly weakens with increasing temperature, concurrently with subtle changes in the crystal structure. These changes are in agreement with previous work, leading the authors to the conclusion that high-temperature neutron diffraction allows reliable crystallographic characterization of materials with moderate texture. It was also demonstrated that structural changes occur at about the glass transition temperature of the cordierite glass (between 973 and 1073 K). Crystal structure refinements were conducted with and without quantitative texture analysis being part of the Rietveld refinement, and a critical comparison of the results is presented, contributing to the sparse body of literature on combined texture and crystal structure refinements.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001; AC52-06NA25396
OSTI ID:
1525816
Report Number(s):
LA-UR-18-21169; JACGAR
Journal Information:
Journal of Applied Crystallography (Online), Vol. 50, Issue 3; ISSN 1600-5767
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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Cited By (1)

Crystal Structure and Thermal Expansion Coefficient of Cordierite Honeycomb Ceramics journal January 2019

Figures / Tables (18)

Figure 1(p. 5)figure Figure 1
Table 1(p. 5)table Table 1
Table 2(p. 5)table Table 2
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Figure 5(p. 8)figure Figure 5
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Figure 12(p. 14)figure Figure 12
Table 3(p. 14)table Table 3
Figure 13(p. 15)figure Figure 13
Figure 14(p. 15)figure Figure 14
Figure 15(p. 16)figure Figure 15

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Related Subjects

36 MATERIALS SCIENCE
synthetic extruded cordierite
crystal texture
high temperature
atomic distances
atomic displacement parameters
neutron diffraction