Time-resolved XRD study of TiC-TiB2 composites obtained by SHS
(2004) In Acta Materialia 52(16). p.4783-4790- Abstract
- Composites of TiC and TiB2 were prepared by self-propagating high-temperature synthesis (SHS). Two routes were attempted; from the elements and from a mixture of anatase, boron oxide, graphite and magnesium. The reactions were monitored in situ by synchrotron X-ray diffraction ( lambda = 0. 26102 Angstrom). The powder mixtures were compacted as cylindrical pellets and upon ignition diffraction patterns were collected every 65 ms with a CCD camera. TiC was the first phase to form, followed by TiB2. The reactions take place in time scales of 0.1 s. The temperature profile for the first route was established from the peak position and the known thermal expansion coefficients. The microstructure of the final products was different: particles... (More)
- Composites of TiC and TiB2 were prepared by self-propagating high-temperature synthesis (SHS). Two routes were attempted; from the elements and from a mixture of anatase, boron oxide, graphite and magnesium. The reactions were monitored in situ by synchrotron X-ray diffraction ( lambda = 0. 26102 Angstrom). The powder mixtures were compacted as cylindrical pellets and upon ignition diffraction patterns were collected every 65 ms with a CCD camera. TiC was the first phase to form, followed by TiB2. The reactions take place in time scales of 0.1 s. The temperature profile for the first route was established from the peak position and the known thermal expansion coefficients. The microstructure of the final products was different: particles of 10 mum for the first and submicron for the second. The viability of the second route to produce ceramic powders in a cheaper way was confirmed. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. (Less)
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https://lup.lub.lu.se/record/140868
- author
- Contreras, L ; Turrillas, X ; Vaughan, G B M ; Kvick, Åke LU and Rodriguez, M A
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Acta Materialia
- volume
- 52
- issue
- 16
- pages
- 4783 - 4790
- publisher
- Elsevier
- external identifiers
-
- scopus:4243199184
- ISSN
- 1873-2453
- DOI
- 10.1016/j.actamat.2004.06.049
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
- id
- aca82075-52b5-4463-8a7d-6301f02dff1e (old id 140868)
- date added to LUP
- 2016-04-01 11:50:31
- date last changed
- 2022-03-28 03:53:47
@article{aca82075-52b5-4463-8a7d-6301f02dff1e, abstract = {{Composites of TiC and TiB2 were prepared by self-propagating high-temperature synthesis (SHS). Two routes were attempted; from the elements and from a mixture of anatase, boron oxide, graphite and magnesium. The reactions were monitored in situ by synchrotron X-ray diffraction ( lambda = 0. 26102 Angstrom). The powder mixtures were compacted as cylindrical pellets and upon ignition diffraction patterns were collected every 65 ms with a CCD camera. TiC was the first phase to form, followed by TiB2. The reactions take place in time scales of 0.1 s. The temperature profile for the first route was established from the peak position and the known thermal expansion coefficients. The microstructure of the final products was different: particles of 10 mum for the first and submicron for the second. The viability of the second route to produce ceramic powders in a cheaper way was confirmed. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.}}, author = {{Contreras, L and Turrillas, X and Vaughan, G B M and Kvick, Åke and Rodriguez, M A}}, issn = {{1873-2453}}, language = {{eng}}, number = {{16}}, pages = {{4783--4790}}, publisher = {{Elsevier}}, series = {{Acta Materialia}}, title = {{Time-resolved XRD study of TiC-TiB2 composites obtained by SHS}}, url = {{http://dx.doi.org/10.1016/j.actamat.2004.06.049}}, doi = {{10.1016/j.actamat.2004.06.049}}, volume = {{52}}, year = {{2004}}, }