Journal article
Time- and angle-resolved x-ray diffraction to probe structural and chemical evolution during Al-Ni intermetallic reactions
Review of scientific instruments, Vol.82(11), pp.113901-113901-6
11/08/2011
Handle:
https://hdl.handle.net/2376/108115
PMID: 22128990
Abstract
We present novel time- and angle-resolved x-ray diffraction (TARXD) capable of probing structural and chemical evolutions during rapidly propagating exothermic intermetallic reactions between Ni-Al multilayers. The system utilizes monochromatic synchrotron x-rays and a two-dimensional (2D) pixel array x-ray detector in combination of a fast-rotating diffraction beam chopper, providing a time (in azimuth) and angle (in distance) resolved x-ray diffraction image continuously recorded at a time resolution of ∼30
μ
s over a time period of 3 ms. Multiple frames of the TARXD images can also be obtained with time resolutions between 30 and 300
μ
s over three to several hundreds of milliseconds. The present method is coupled with a high-speed camera and a six-channel optical pyrometer to determine the reaction characteristics including the propagation speed of 7.6 m/s, adiabatic heating rate of 4.0 × 10
6
K/s, and conductive cooling rate of 4.5 × 10
4
K/s. These time-dependent structural and temperature data provide evidences for the rapid formation of intermetallic NiAl alloy within 45
μ
s, thermal expansion coefficient of 1.1 × 10
−6
K for NiAl, and crystallization of V and Ag
3
In in later time.
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Details
- Title
- Time- and angle-resolved x-ray diffraction to probe structural and chemical evolution during Al-Ni intermetallic reactions
- Creators
- Choong-Shik Yoo - Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USAHaoyan Wei - Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USAJing-Yin Chen - Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USAGuoyin Shen - Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USAPaul Chow - Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USAYuming Xiao - Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USA
- Publication Details
- Review of scientific instruments, Vol.82(11), pp.113901-113901-6
- Academic Unit
- Institute for Shock Physics
- Publisher
- American Institute of Physics
- Grant note
- 0854618 / NSF 2008-ST-061-ED0001 / UNSPECIFIED
- Identifiers
- 99900547472701842
- Resource Type
- Journal article