Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti3Al composites from nano-TiC particles

Zhezhen Fu; Kanchan Mondai; Rasit Koc

Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti₃Al composites from nano-TiC particles

Zhezhen Fu
, Kanchan Mondai
, Rasit Koc

School of Science, Engineering & Technology (Harrisburg)

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

Abstract

The paper discusses the development of a new material system for interconnect application in Solid Oxide Fuel Cells (SOFC) based on TiC-Ti₃Al. Nano-size TiC powders utilized in this research were synthesized using carbon coated TiO₂ precursors from a patented process. The pressureless sintering of TiC-Ti₃Al in vacuum was applied at temperatures between 1300-1500°C and content of Ti₃ Al was varied in the range of 10-40 wt %. XRD and SEM were used for phase evaluation and sintering behavior. Relative density increased markedly with increasing sintering temperature because of grain growth and formation of Ti₃AlC2 secondary phase. Dense products (>95% TD) were synthesized from nanosized TiC powders with 10 and 20 wt. % Ti₃Al, but with about 8 to 10% porosity for 30 and 40 wt. % Ti₃Al. The mechanical properties were determined from Vickers hardness and fracture toughness calculations. Vickers hardness decreased and fracture toughness increased with increasing Ti₃Al content. The electrical conductivity and oxidation behavior of TiC-Ti₃Al composites were investigated to evaluate the feasibility for SOFC interconnect application. The electrical conductivity measurements in air at 800 °C for 100 hours were made using Kelvin Method 4 wire 2 point method.

Original language	English (US)
Title of host publication	Advances in Solid Oxide Fuel Cells and Electronic Ceramics - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites
Editors	Mihails Kusnezoff, Kiyoshi Shimamura, Narottam P. Bansal
Publisher	American Ceramic Society
Pages	31-43
Number of pages	13
Edition	3
ISBN (Print)	9781119040439
State	Published - 2016
Event	12th International Symposium on Solid Oxide Fuel Cells: Materials, Science and Technology, SOFC 2015 and a Focused Session: Single Crystalline Materials for Electrical, Optical and Medical Applications - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015 - Daytona Beach, United States Duration: Jan 25 2015 → Jan 30 2015

Publication series

Name	Ceramic Engineering and Science Proceedings
Number	3
Volume	36
ISSN (Print)	0196-6219

Conference

Conference	12th International Symposium on Solid Oxide Fuel Cells: Materials, Science and Technology, SOFC 2015 and a Focused Session: Single Crystalline Materials for Electrical, Optical and Medical Applications - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015
Country/Territory	United States
City	Daytona Beach
Period	1/25/15 → 1/30/15

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

Cite this

Fu, Z., Mondai, K., & Koc, R. (2016). Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti₃Al composites from nano-TiC particles. In M. Kusnezoff, K. Shimamura, & N. P. Bansal (Eds.), Advances in Solid Oxide Fuel Cells and Electronic Ceramics - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites (3 ed., pp. 31-43). (Ceramic Engineering and Science Proceedings; Vol. 36, No. 3). American Ceramic Society.

Fu, Zhezhen ; Mondai, Kanchan ; Koc, Rasit. / Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti₃Al composites from nano-TiC particles. Advances in Solid Oxide Fuel Cells and Electronic Ceramics - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites. editor / Mihails Kusnezoff ; Kiyoshi Shimamura ; Narottam P. Bansal. 3. ed. American Ceramic Society, 2016. pp. 31-43 (Ceramic Engineering and Science Proceedings; 3).

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title = "Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti3Al composites from nano-TiC particles",

abstract = "The paper discusses the development of a new material system for interconnect application in Solid Oxide Fuel Cells (SOFC) based on TiC-Ti3Al. Nano-size TiC powders utilized in this research were synthesized using carbon coated TiO2 precursors from a patented process. The pressureless sintering of TiC-Ti3Al in vacuum was applied at temperatures between 1300-1500°C and content of Ti3 Al was varied in the range of 10-40 wt \%. XRD and SEM were used for phase evaluation and sintering behavior. Relative density increased markedly with increasing sintering temperature because of grain growth and formation of Ti3AlC2 secondary phase. Dense products (>95\% TD) were synthesized from nanosized TiC powders with 10 and 20 wt. \% Ti3Al, but with about 8 to 10\% porosity for 30 and 40 wt. \% Ti3Al. The mechanical properties were determined from Vickers hardness and fracture toughness calculations. Vickers hardness decreased and fracture toughness increased with increasing Ti3Al content. The electrical conductivity and oxidation behavior of TiC-Ti3Al composites were investigated to evaluate the feasibility for SOFC interconnect application. The electrical conductivity measurements in air at 800 °C for 100 hours were made using Kelvin Method 4 wire 2 point method.",

author = "Zhezhen Fu and Kanchan Mondai and Rasit Koc",

year = "2016",

language = "English (US)",

isbn = "9781119040439",

series = "Ceramic Engineering and Science Proceedings",

publisher = "American Ceramic Society",

number = "3",

pages = "31--43",

editor = "Mihails Kusnezoff and Kiyoshi Shimamura and Bansal, \{Narottam P.\}",

booktitle = "Advances in Solid Oxide Fuel Cells and Electronic Ceramics - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites",

address = "United States",

edition = "3",

note = "12th International Symposium on Solid Oxide Fuel Cells: Materials, Science and Technology, SOFC 2015 and a Focused Session: Single Crystalline Materials for Electrical, Optical and Medical Applications - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015 ; Conference date: 25-01-2015 Through 30-01-2015",

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Fu, Z, Mondai, K & Koc, R 2016, Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti₃Al composites from nano-TiC particles. in M Kusnezoff, K Shimamura & NP Bansal (eds), Advances in Solid Oxide Fuel Cells and Electronic Ceramics - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites. 3 edn, Ceramic Engineering and Science Proceedings, no. 3, vol. 36, American Ceramic Society, pp. 31-43, 12th International Symposium on Solid Oxide Fuel Cells: Materials, Science and Technology, SOFC 2015 and a Focused Session: Single Crystalline Materials for Electrical, Optical and Medical Applications - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015, Daytona Beach, United States, 1/25/15.

Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti₃Al composites from nano-TiC particles. / Fu, Zhezhen; Mondai, Kanchan; Koc, Rasit.
Advances in Solid Oxide Fuel Cells and Electronic Ceramics - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites. ed. / Mihails Kusnezoff; Kiyoshi Shimamura; Narottam P. Bansal. 3. ed. American Ceramic Society, 2016. p. 31-43 (Ceramic Engineering and Science Proceedings; Vol. 36, No. 3).

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

TY - GEN

T1 - Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti3Al composites from nano-TiC particles

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AU - Mondai, Kanchan

AU - Koc, Rasit

PY - 2016

Y1 - 2016

N2 - The paper discusses the development of a new material system for interconnect application in Solid Oxide Fuel Cells (SOFC) based on TiC-Ti3Al. Nano-size TiC powders utilized in this research were synthesized using carbon coated TiO2 precursors from a patented process. The pressureless sintering of TiC-Ti3Al in vacuum was applied at temperatures between 1300-1500°C and content of Ti3 Al was varied in the range of 10-40 wt %. XRD and SEM were used for phase evaluation and sintering behavior. Relative density increased markedly with increasing sintering temperature because of grain growth and formation of Ti3AlC2 secondary phase. Dense products (>95% TD) were synthesized from nanosized TiC powders with 10 and 20 wt. % Ti3Al, but with about 8 to 10% porosity for 30 and 40 wt. % Ti3Al. The mechanical properties were determined from Vickers hardness and fracture toughness calculations. Vickers hardness decreased and fracture toughness increased with increasing Ti3Al content. The electrical conductivity and oxidation behavior of TiC-Ti3Al composites were investigated to evaluate the feasibility for SOFC interconnect application. The electrical conductivity measurements in air at 800 °C for 100 hours were made using Kelvin Method 4 wire 2 point method.

AB - The paper discusses the development of a new material system for interconnect application in Solid Oxide Fuel Cells (SOFC) based on TiC-Ti3Al. Nano-size TiC powders utilized in this research were synthesized using carbon coated TiO2 precursors from a patented process. The pressureless sintering of TiC-Ti3Al in vacuum was applied at temperatures between 1300-1500°C and content of Ti3 Al was varied in the range of 10-40 wt %. XRD and SEM were used for phase evaluation and sintering behavior. Relative density increased markedly with increasing sintering temperature because of grain growth and formation of Ti3AlC2 secondary phase. Dense products (>95% TD) were synthesized from nanosized TiC powders with 10 and 20 wt. % Ti3Al, but with about 8 to 10% porosity for 30 and 40 wt. % Ti3Al. The mechanical properties were determined from Vickers hardness and fracture toughness calculations. Vickers hardness decreased and fracture toughness increased with increasing Ti3Al content. The electrical conductivity and oxidation behavior of TiC-Ti3Al composites were investigated to evaluate the feasibility for SOFC interconnect application. The electrical conductivity measurements in air at 800 °C for 100 hours were made using Kelvin Method 4 wire 2 point method.

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M3 - Conference contribution

AN - SCOPUS:84959495706

SN - 9781119040439

T3 - Ceramic Engineering and Science Proceedings

SP - 31

EP - 43

BT - Advances in Solid Oxide Fuel Cells and Electronic Ceramics - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites

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Fu Z, Mondai K, Koc R. Sintering, mechanical, electrical and oxidation properties of ceramic intermetallic TiC-Ti₃Al composites from nano-TiC particles. In Kusnezoff M, Shimamura K, Bansal NP, editors, Advances in Solid Oxide Fuel Cells and Electronic Ceramics - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites. 3 ed. American Ceramic Society. 2016. p. 31-43. (Ceramic Engineering and Science Proceedings; 3).