Synthesis and oxidation of Zr3Al3C5 powders

L. F. He; Y. C. Zhou; Y. W. Bao; J. Y. Wang; M. S. Li

Synthesis and oxidation of Zr₃Al₃C₅ powders

L. F. He, Y. C. Zhou, Y. W. Bao, J. Y. Wang, M. S. Li

Materials and Fuels Complex

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Predominantly single phase Zr₃Al₃C₅ powders were synthesized in an Ar atmosphere using Zr-Al intermetallics and graphite as starting materials. The reaction path of Zr₃Al₃C₅ synthesis was discussed based on differential scanning calorimetry and X-ray diffraction results. Lattice parameters of Zr₃Al₃C₅ determined using the Rietveld method are a = 3.347 A and c = 27.642 A. In addition, the oxidation of Zr₃Al₃C₅ powders was tested by using thermogravimetry-differential scanning calorimetry. The starting and complete oxidation temperatures are 400 °C and 1200 °C, respectively. These temperatures are much higher than those for ZrC, suggesting that Zr₃Al₃C₅ has better oxidation resistance than ZrC. On the other hand, the oxidation degree of Zr₃Al₃C₅, defined for the complete carbide-oxide transformation, overshot 100% during oxidation. This overshooting is attributed to the formation of amorphous carbon. The phase evolution during the oxidation of Zr₃Al₃C₅ was also investigated.

Original language	English
Pages (from-to)	3-9
Number of pages	7
Journal	Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Volume	98
Issue number	1
State	Published - Jan 2007

Keywords

DSC
Oxidation
XRD
ZrAlC
ZrC

Cite this

@article{034d2f8d01094d99bc5251e8ddee6e68,

title = "Synthesis and oxidation of Zr3Al3C5 powders",

abstract = "Predominantly single phase Zr3Al3C5 powders were synthesized in an Ar atmosphere using Zr-Al intermetallics and graphite as starting materials. The reaction path of Zr3Al3C5 synthesis was discussed based on differential scanning calorimetry and X-ray diffraction results. Lattice parameters of Zr3Al3C5 determined using the Rietveld method are a = 3.347 A and c = 27.642 A. In addition, the oxidation of Zr3Al3C5 powders was tested by using thermogravimetry-differential scanning calorimetry. The starting and complete oxidation temperatures are 400 °C and 1200 °C, respectively. These temperatures are much higher than those for ZrC, suggesting that Zr3Al3C5 has better oxidation resistance than ZrC. On the other hand, the oxidation degree of Zr3Al3C5, defined for the complete carbide-oxide transformation, overshot 100% during oxidation. This overshooting is attributed to the formation of amorphous carbon. The phase evolution during the oxidation of Zr3Al3C5 was also investigated.",

keywords = "DSC, Oxidation, XRD, ZrAlC, ZrC",

author = "He, {L. F.} and Zhou, {Y. C.} and Bao, {Y. W.} and Wang, {J. Y.} and Li, {M. S.}",

year = "2007",

month = jan,

language = "English",

volume = "98",

pages = "3--9",

journal = "Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques",

issn = "0044-3093",

publisher = "Hanser Publishers",

number = "1",

}

TY - JOUR

T1 - Synthesis and oxidation of Zr3Al3C5 powders

AU - He, L. F.

AU - Zhou, Y. C.

AU - Bao, Y. W.

AU - Wang, J. Y.

AU - Li, M. S.

PY - 2007/1

Y1 - 2007/1

N2 - Predominantly single phase Zr3Al3C5 powders were synthesized in an Ar atmosphere using Zr-Al intermetallics and graphite as starting materials. The reaction path of Zr3Al3C5 synthesis was discussed based on differential scanning calorimetry and X-ray diffraction results. Lattice parameters of Zr3Al3C5 determined using the Rietveld method are a = 3.347 A and c = 27.642 A. In addition, the oxidation of Zr3Al3C5 powders was tested by using thermogravimetry-differential scanning calorimetry. The starting and complete oxidation temperatures are 400 °C and 1200 °C, respectively. These temperatures are much higher than those for ZrC, suggesting that Zr3Al3C5 has better oxidation resistance than ZrC. On the other hand, the oxidation degree of Zr3Al3C5, defined for the complete carbide-oxide transformation, overshot 100% during oxidation. This overshooting is attributed to the formation of amorphous carbon. The phase evolution during the oxidation of Zr3Al3C5 was also investigated.

AB - Predominantly single phase Zr3Al3C5 powders were synthesized in an Ar atmosphere using Zr-Al intermetallics and graphite as starting materials. The reaction path of Zr3Al3C5 synthesis was discussed based on differential scanning calorimetry and X-ray diffraction results. Lattice parameters of Zr3Al3C5 determined using the Rietveld method are a = 3.347 A and c = 27.642 A. In addition, the oxidation of Zr3Al3C5 powders was tested by using thermogravimetry-differential scanning calorimetry. The starting and complete oxidation temperatures are 400 °C and 1200 °C, respectively. These temperatures are much higher than those for ZrC, suggesting that Zr3Al3C5 has better oxidation resistance than ZrC. On the other hand, the oxidation degree of Zr3Al3C5, defined for the complete carbide-oxide transformation, overshot 100% during oxidation. This overshooting is attributed to the formation of amorphous carbon. The phase evolution during the oxidation of Zr3Al3C5 was also investigated.

KW - DSC

KW - Oxidation

KW - XRD

KW - ZrAlC

KW - ZrC

UR - http://www.scopus.com/inward/record.url?scp=85033363609&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85033363609

SN - 0044-3093

VL - 98

SP - 3

EP - 9

JO - Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques

JF - Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques

IS - 1

ER -

Synthesis and oxidation of Zr₃Al₃C₅ powders

Abstract

Keywords

Other files and links

Fingerprint

Cite this