Spark plasma sintering of molybdenum silicides synthesized from oxide precursors

Didem Ovalı; Marek Tarraste; Mertcan Kaba; Duygu Ağaoğulları; Lauri Kollo; K. G. Prashanth; M. Lütfi Öveçoğlu

doi:10.1016/j.ceramint.2021.01.248

Spark plasma sintering of molybdenum silicides synthesized from oxide precursors

Didem Ovalı^*
, Marek Tarraste
, Mertcan Kaba
, Duygu Ağaoğulları
, Lauri Kollo
, K. G. Prashanth
, M. Lütfi Öveçoğlu

^*Bu çalışma için yazışmadan sorumlu yazar

Metalurji ve Malzeme Müh.Böl.

Osmaniye Korkut Ata University
Istanbul Technical University
Tallinn University of Technology
Austrian Academy of Sciences
Vellore Institute of Technology

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

11 Atıf (Scopus)

Özet

This work investigated the spark plasma sintering behavior of mechanochemically synthesized molybdenum silicide (MS) powders. Nanosized MS powders were obtained via a mechanochemical synthesis process applied to the initial MoO₃–SiO₂–Mg powder batches. Various characterization techniques such as X-ray diffraction (XRD), particle size analysis (PSA), Fourier-transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM) were performed to reveal the compositional and morphological properties of the homemade MS powders. The increasing sintering temperature up to 1600 °C enhanced the sinterability of the MS samples. In addition to the XRD and SEM/EDS analyses, the samples sintered at different temperatures were also characterized in terms of Archimedes' density, microhardness, and fracture toughness properties. The MS sample sintered at the temperature of 1600 °C demonstrated a relative density of 93.7%, a Vickers microhardness of 14.9 GPa, and a fracture toughness of 3.54 MPa√m. The wear rate decreased significantly with increasing sintering temperature from 3.60 × 10⁻⁵ mm³/Nm (1500 °C) to 1.77 × 10⁻⁵ mm³/Nm (1600 °C). Lastly, thermal gravimetry analyses (TGA) were conducted to observe the oxidation behavior of the sintered samples. The oxidation resistance of MS samples improved with increasing sintering temperatures.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	13827-13836
Sayfa sayısı	10
Dergi	Ceramics International
Hacim	47
Basın numarası	10
DOI'lar	https://doi.org/10.1016/j.ceramint.2021.01.248
Yayın durumu	Yayınlandı - 15 May 2021

Bibliyografik not

Publisher Copyright:
© 2021 Elsevier Ltd and Techna Group S.r.l.

Finansman

Didem Ovalı would like to express her graduate to the Tallinn University of Technology and Archimedes Foundation for a Dora Plus grant short term visit and to the Tinçel Culture Foundation for the visiting student scholarships. Didem Ovalı appreciates Dr. Özge Balcı for her support in the research visit. This study was supported through a research project (#216M070) by The Scientific and Technological Research Council of Turkey (TUBITAK). A part of the research was supported by the institutional funding project IUT 19–29 and the grant PRG 665 of Estonian Research Council. The authors are grateful to Prof. Hüseyin Çimenoğlu for providing the wear test facility. The authors would like to thank the Central Research Laboratory at Namık Kemal University and Bursa Technical University for the SEM/EDS analyses. Didem Ovalı would like to express her graduate to the Tallinn University of Technology and Archimedes Foundation for a Dora Plus grant short term visit and to the Tinçel Culture Foundation for the visiting student scholarships. Didem Ovalı appreciates Dr. Özge Balcı for her support in the research visit. This study was supported through a research project (#216M070) by The Scientific and Technological Research Council of Turkey (TUBITAK). A part of the research was supported by the institutional funding project IUT 19–29 and the grant PRG 665 of Estonian Research Council . The authors are grateful to Prof. Hüseyin Çimenoğlu for providing the wear test facility. The authors would like to thank the Central Research Laboratory at Namık Kemal University and Bursa Technical University for the SEM/EDS analyses.

Finansörler	Finansör numarası
Bursa Technical University
Tallinn University of Technology and Archimedes Foundation for a Dora Plus
Tinçel Culture Foundation	216M070
Eesti Teadusagentuur
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu	IUT 19–29, PRG 665
Tekirdağ Namık Kemal Üniversitesi

Belgeye Erişim

10.1016/j.ceramint.2021.01.248

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Spark plasma sintering of molybdenum silicides synthesized from oxide precursors",

abstract = "This work investigated the spark plasma sintering behavior of mechanochemically synthesized molybdenum silicide (MS) powders. Nanosized MS powders were obtained via a mechanochemical synthesis process applied to the initial MoO3–SiO2–Mg powder batches. Various characterization techniques such as X-ray diffraction (XRD), particle size analysis (PSA), Fourier-transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM) were performed to reveal the compositional and morphological properties of the homemade MS powders. The increasing sintering temperature up to 1600 °C enhanced the sinterability of the MS samples. In addition to the XRD and SEM/EDS analyses, the samples sintered at different temperatures were also characterized in terms of Archimedes' density, microhardness, and fracture toughness properties. The MS sample sintered at the temperature of 1600 °C demonstrated a relative density of 93.7\%, a Vickers microhardness of 14.9 GPa, and a fracture toughness of 3.54 MPa√m. The wear rate decreased significantly with increasing sintering temperature from 3.60 × 10−5 mm3/Nm (1500 °C) to 1.77 × 10−5 mm3/Nm (1600 °C). Lastly, thermal gravimetry analyses (TGA) were conducted to observe the oxidation behavior of the sintered samples. The oxidation resistance of MS samples improved with increasing sintering temperatures.",

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author = "Didem Ovalı and Marek Tarraste and Mertcan Kaba and Duygu Ağaoğulları and Lauri Kollo and Prashanth, \{K. G.\} and \{L{\"u}tfi {\"O}ve{\c c}oğlu\}, M.",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd and Techna Group S.r.l.",

year = "2021",

month = may,

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doi = "10.1016/j.ceramint.2021.01.248",

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AU - Ovalı, Didem

AU - Tarraste, Marek

AU - Kaba, Mertcan

AU - Ağaoğulları, Duygu

AU - Kollo, Lauri

AU - Prashanth, K. G.

AU - Lütfi Öveçoğlu, M.

PY - 2021/5/15

Y1 - 2021/5/15

N2 - This work investigated the spark plasma sintering behavior of mechanochemically synthesized molybdenum silicide (MS) powders. Nanosized MS powders were obtained via a mechanochemical synthesis process applied to the initial MoO3–SiO2–Mg powder batches. Various characterization techniques such as X-ray diffraction (XRD), particle size analysis (PSA), Fourier-transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM) were performed to reveal the compositional and morphological properties of the homemade MS powders. The increasing sintering temperature up to 1600 °C enhanced the sinterability of the MS samples. In addition to the XRD and SEM/EDS analyses, the samples sintered at different temperatures were also characterized in terms of Archimedes' density, microhardness, and fracture toughness properties. The MS sample sintered at the temperature of 1600 °C demonstrated a relative density of 93.7%, a Vickers microhardness of 14.9 GPa, and a fracture toughness of 3.54 MPa√m. The wear rate decreased significantly with increasing sintering temperature from 3.60 × 10−5 mm3/Nm (1500 °C) to 1.77 × 10−5 mm3/Nm (1600 °C). Lastly, thermal gravimetry analyses (TGA) were conducted to observe the oxidation behavior of the sintered samples. The oxidation resistance of MS samples improved with increasing sintering temperatures.

AB - This work investigated the spark plasma sintering behavior of mechanochemically synthesized molybdenum silicide (MS) powders. Nanosized MS powders were obtained via a mechanochemical synthesis process applied to the initial MoO3–SiO2–Mg powder batches. Various characterization techniques such as X-ray diffraction (XRD), particle size analysis (PSA), Fourier-transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM) were performed to reveal the compositional and morphological properties of the homemade MS powders. The increasing sintering temperature up to 1600 °C enhanced the sinterability of the MS samples. In addition to the XRD and SEM/EDS analyses, the samples sintered at different temperatures were also characterized in terms of Archimedes' density, microhardness, and fracture toughness properties. The MS sample sintered at the temperature of 1600 °C demonstrated a relative density of 93.7%, a Vickers microhardness of 14.9 GPa, and a fracture toughness of 3.54 MPa√m. The wear rate decreased significantly with increasing sintering temperature from 3.60 × 10−5 mm3/Nm (1500 °C) to 1.77 × 10−5 mm3/Nm (1600 °C). Lastly, thermal gravimetry analyses (TGA) were conducted to observe the oxidation behavior of the sintered samples. The oxidation resistance of MS samples improved with increasing sintering temperatures.

KW - Mechanical properties C

KW - SPS A

KW - Silicides D

KW - X-ray methods B

UR - https://www.scopus.com/pages/publications/85100803508

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VL - 47

SP - 13827

EP - 13836

JO - Ceramics International

JF - Ceramics International

IS - 10

ER -

Spark plasma sintering of molybdenum silicides synthesized from oxide precursors

Özet

Bibliyografik not

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

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