Studies of c-axis threading screw dislocations in hexagonal SiC

Yi Chen; Ning Zhang; Xianrong Huang; Govindhan Dhanaraj; Edward Sanchez; F. MacMillan Michael; Michael Dudley

doi:10.1557/proc-1069-d02-03

Studies of c-axis threading screw dislocations in hexagonal SiC

Yi Chen
, Ning Zhang
, Xianrong Huang
, Govindhan Dhanaraj
, Edward Sanchez
, F. MacMillan Michael
, Michael Dudley

Materials Science and Engineering

Stony Brook University
Brookhaven National Laboratory
Dow Chemical

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

In our study, closed-core threading screw dislocations (TSDs) and micropipes were studied using synchrotron x-ray topography of various geometries. The Burgers vector magnitude of TSDs can be quantitatively determined from their dimensions in back-reflection x-ray topography, based on ray-tracing simulation. This has been verified by the images of elementary TSDs. Dislocation senses of closed-core threading screw dislocations and micropipes can be revealed by grazing-incidence x-ray topography. The threading screw dislocations can be converted into Frank partial dislocations on the basal planes which has been confirmed by transmission synchrotron x-ray topography.

Original language	English
Title of host publication	Materials Research Society Symposium Proceedings - Silicon Carbide 2008 - Materials, Processing and Devices
Publisher	Materials Research Society
Pages	45-51
Number of pages	7
ISBN (Print)	9781605110394
DOIs	https://doi.org/10.1557/proc-1069-d02-03
State	Published - 2008
Event	Silicon Carbide 2008 - Materials, Processing and Devices - San Francisco, CA, United States Duration: Mar 25 2008 → Mar 27 2008

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1069
ISSN (Print)	0272-9172

Conference

Conference	Silicon Carbide 2008 - Materials, Processing and Devices
Country/Territory	United States
City	San Francisco, CA
Period	03/25/08 → 03/27/08

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10.1557/proc-1069-d02-03

Cite this

Chen, Y., Zhang, N., Huang, X., Dhanaraj, G., Sanchez, E., Michael, F. M., & Dudley, M. (2008). Studies of c-axis threading screw dislocations in hexagonal SiC. In Materials Research Society Symposium Proceedings - Silicon Carbide 2008 - Materials, Processing and Devices (pp. 45-51). (Materials Research Society Symposium Proceedings; Vol. 1069). Materials Research Society. https://doi.org/10.1557/proc-1069-d02-03

@inproceedings{3181adf89c3a4026839af4c9316af264,

title = "Studies of c-axis threading screw dislocations in hexagonal SiC",

abstract = "In our study, closed-core threading screw dislocations (TSDs) and micropipes were studied using synchrotron x-ray topography of various geometries. The Burgers vector magnitude of TSDs can be quantitatively determined from their dimensions in back-reflection x-ray topography, based on ray-tracing simulation. This has been verified by the images of elementary TSDs. Dislocation senses of closed-core threading screw dislocations and micropipes can be revealed by grazing-incidence x-ray topography. The threading screw dislocations can be converted into Frank partial dislocations on the basal planes which has been confirmed by transmission synchrotron x-ray topography.",

author = "Yi Chen and Ning Zhang and Xianrong Huang and Govindhan Dhanaraj and Edward Sanchez and Michael, \{F. MacMillan\} and Michael Dudley",

year = "2008",

doi = "10.1557/proc-1069-d02-03",

language = "English",

isbn = "9781605110394",

series = "Materials Research Society Symposium Proceedings",

publisher = "Materials Research Society",

pages = "45--51",

booktitle = "Materials Research Society Symposium Proceedings - Silicon Carbide 2008 - Materials, Processing and Devices",

note = "Silicon Carbide 2008 - Materials, Processing and Devices ; Conference date: 25-03-2008 Through 27-03-2008",

}

Chen, Y, Zhang, N, Huang, X, Dhanaraj, G, Sanchez, E, Michael, FM & Dudley, M 2008, Studies of c-axis threading screw dislocations in hexagonal SiC. in Materials Research Society Symposium Proceedings - Silicon Carbide 2008 - Materials, Processing and Devices. Materials Research Society Symposium Proceedings, vol. 1069, Materials Research Society, pp. 45-51, Silicon Carbide 2008 - Materials, Processing and Devices, San Francisco, CA, United States, 03/25/08. https://doi.org/10.1557/proc-1069-d02-03

Studies of c-axis threading screw dislocations in hexagonal SiC. / Chen, Yi; Zhang, Ning; Huang, Xianrong et al.
Materials Research Society Symposium Proceedings - Silicon Carbide 2008 - Materials, Processing and Devices. Materials Research Society, 2008. p. 45-51 (Materials Research Society Symposium Proceedings; Vol. 1069).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Studies of c-axis threading screw dislocations in hexagonal SiC

AU - Chen, Yi

AU - Zhang, Ning

AU - Huang, Xianrong

AU - Dhanaraj, Govindhan

AU - Sanchez, Edward

AU - Michael, F. MacMillan

AU - Dudley, Michael

PY - 2008

Y1 - 2008

N2 - In our study, closed-core threading screw dislocations (TSDs) and micropipes were studied using synchrotron x-ray topography of various geometries. The Burgers vector magnitude of TSDs can be quantitatively determined from their dimensions in back-reflection x-ray topography, based on ray-tracing simulation. This has been verified by the images of elementary TSDs. Dislocation senses of closed-core threading screw dislocations and micropipes can be revealed by grazing-incidence x-ray topography. The threading screw dislocations can be converted into Frank partial dislocations on the basal planes which has been confirmed by transmission synchrotron x-ray topography.

AB - In our study, closed-core threading screw dislocations (TSDs) and micropipes were studied using synchrotron x-ray topography of various geometries. The Burgers vector magnitude of TSDs can be quantitatively determined from their dimensions in back-reflection x-ray topography, based on ray-tracing simulation. This has been verified by the images of elementary TSDs. Dislocation senses of closed-core threading screw dislocations and micropipes can be revealed by grazing-incidence x-ray topography. The threading screw dislocations can be converted into Frank partial dislocations on the basal planes which has been confirmed by transmission synchrotron x-ray topography.

UR - https://www.scopus.com/pages/publications/55849131765

U2 - 10.1557/proc-1069-d02-03

DO - 10.1557/proc-1069-d02-03

M3 - Conference contribution

AN - SCOPUS:55849131765

SN - 9781605110394

T3 - Materials Research Society Symposium Proceedings

SP - 45

EP - 51

BT - Materials Research Society Symposium Proceedings - Silicon Carbide 2008 - Materials, Processing and Devices

PB - Materials Research Society

T2 - Silicon Carbide 2008 - Materials, Processing and Devices

Y2 - 25 March 2008 through 27 March 2008

ER -

Studies of c-axis threading screw dislocations in hexagonal SiC

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