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INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES

Year 2012, Volume: 13 Issue: 2, 127 - 134, 31.01.2013

Cem Orhun Emrah Dölekçekiç

Abstract

The main purpose of this study was to determine the change in density, glass transition temperature (Tg) and hardness as a result of compositional modifications in the (RE+Ca)SiAlON oxynitride glasses (RE= Er, Nd, Sm, Eu, Dy, Yb) with a cation ratio in eq% of (1+27):56:16 = (RE+Ca):Si:Al. The amount of nitrogen was kept constant (N=5 eq %).

Additionally other series of the (Er+Y):Si:Al:O:N glasses with cation composition  3+25):56:16 were prepared with different amount of nitrogen (where N= 0, 5, 10 eq %) to observe the effect of nitrogen to glass transition temperature. X-Ray diffraction patterns proved that all produced glasses were amorphous.

Tg and hardness results of (RE+Ca)SiAlON glasses were revealed that there is a linear relationship between cation field strength (CFS). Density results versus molecular weight and CFS were presented. Additionally, glass transition temperatures of the (Er+Y)SiAlON glasses were further increased with the increasing nitrogen content in the structure. These results are also compared with (RE+Ca)SiAlON glass series.

Keywords

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References

  • Becher, P.F., Hampshire, S., Pomeroy, J., Hoff- mann, M.J., Lance, M.J. and Satet, R.L. (2011). An Overview of The Structure and Oxynitride Glass, International Journal of Applied Glass Science 2(1), 63-83. Based
  • Becher, P.F., Painter, G.S., Sun, E.Y., Hsue, C.H. and Lance, M.J. (2000). The Importance of Amorphous Intergranular Films in Self-Reinforced Si3N4 Ceramics, Acta Materialia 48(18-19), 4493–4499.
  • Becher, P.F., Waters, S.B., Westmoreland, C.G. and Riester, L. (2002). Compositional Effects on The Properties of Si - Al – RE - Based Oxynitride Glasses (RE _ La, Nd, Gd, Y, or Lu), Journal of Am. Ceram. Society 85(4), 897-902.
  • Hampshire, S. and Pomeroy, M.J. (2004). Effect of Composition on Viscosities of Rare Earth Oxynitride Glasses, Journal of Non-Crystalline Solid 344(1-2), 1-7.
  • Hampshire, S. (2008). Developments in Oxynitride Properties Developments in Strategic Materials Ceramic Eng. and Science Proceedings 29(10). ; Crystallization,
  • Hampshire, S. (2008). Oxynitride Glasses, Journal of Ceramic Society 28, 1475- 1483.
  • Iftekhar, S., Grin, J., Gunawidjaja, P. and Eden, M. (2011). Glass Formation and Structure – Property – Composition Relations of the RE2O3–Al2O3–SiO2 (RE=La, Y, Lu, Sc) Systems, Journal of Am. Ceram. Society, 94 (8), 2429-2435.
  • Keyan, L. and Feng, X. (2009). Hardness of Materials: Studies at Levels From Atoms to Crystals, Chinese Science Bulletin.
  • Kleebe, H.J., Pezzotti, G., Ziegler, G., Microstructure and Fracture (1999). Toughness of Si3N4 Ceramics: Combined Roles of Grain Morphology and Second- ary Phase Chemistry, Journal of Am. Ceram. Society 82(7), 1857-1867.
  • Lofaj, F., Satet, R., Hoffmann, M.J., Lopez, A. and R.A. (2004). Thermal Expansion and Glass Transition Temperature of The Rare-Earth Doped Oxynitride Glasses, Journal of European Ceram. Soc. 24, 3377-3385.
  • Menke, Y., Baron, V. and Hampshire, S. (2000). Effect of Rare Earth Cations on Properties of Sialon Glasses, Journal of Non- Crystalline Solids 276, 145-150. Ojovan, M.I. Thermodynamic Symmetry Changes at Glass Transition, Entropy 10, 334-364. Configurons: Parameters and
  • Pauling, L. (1932). The Nature of The Chemical Bond. IV. The Energy of Single Bonds and The Relative Electronegativity of Atoms, Journal of the American Chemical Society 54(9), 3570-3582. Effects of Nitrogen on Structure and Properties, Journal of TheCeramicSociety of Japan 116(6), 755-761.
  • Pomeroy, J., Nestor, E., Ramesh, R. and Hampshire, S. (2005). Properties and Crystallization of Rare-Earth Si–Al–O–N Glasses Containing Mixed Trivalent Modifiers, Journal of Am. Ceram. Society 88(4), 875-881.
  • Ramesh, R., Nestor, E., Pomeroy, J. and Stuart, H. (1997). Formation of La-Si-Al-O-N Glasses And Their Properties, Journal of European Ceram. Soc. 17, 1933-1939.

NADİR TOPRAK ELEMENTİ KATYONLARININ (RE+Ca)SiAlON CAMLARINA ETKİSİNİN İNCELENMESİ

Year 2012, Volume: 13 Issue: 2, 127 - 134, 31.01.2013

Cem Orhun Emrah Dölekçekiç

Abstract

Bu çalışmanın ana amacı katyon oranı eşdeğer yüzdece (eq %), (1+27):56:16=(RE+Ca):Si:Al olan
(RE+Ca)SiAlON oksinitrür camlarında yoğunluk, cam geçiş sıcaklığı ve sertlik değişimlerinin bile-
şimsel değişikliklere bağlı olarak incelenmesidir. (RE+Ca)SiAlON camlarının azot değerleri sabit tutulmuştur
(N=5 eq %).
Ayrıca, katyon bileşimi (3+25):56:16 olan (Er+Y):Si:Al camlar, azotun Tg’ye etkisini gözlemlemek
amacıyla farklı azot oranlarıyla hazırlanmıştır (N= 0, 5, 10 eq %).
(RE+Ca)SiAlON camlarının Tg ve sertlik sonuçları katyon alan mukavemeti (CFS) değerlerine
bağlı olarak lineer bir ilişkiyle açıklanmıştır. Yoğunluk sonuçları ise moleküler ağırlık ve CFS değerlerine
karşı sunulmuştur. Ayrıca, (Er+Y)SiAlON camlarının cam geçiş sıcaklıkları artan azot miktarına
göre artış göstermiştir. Bu sonuç (RE+Ca)SiAlON serisiyle kıyaslanmıştır.

Keywords

Oksinitrür cam Nadir element etkisi Azot etkisi Katyon alan mukavemeti

References

  • Becher, P.F., Hampshire, S., Pomeroy, J., Hoff- mann, M.J., Lance, M.J. and Satet, R.L. (2011). An Overview of The Structure and Oxynitride Glass, International Journal of Applied Glass Science 2(1), 63-83. Based
  • Becher, P.F., Painter, G.S., Sun, E.Y., Hsue, C.H. and Lance, M.J. (2000). The Importance of Amorphous Intergranular Films in Self-Reinforced Si3N4 Ceramics, Acta Materialia 48(18-19), 4493–4499.
  • Becher, P.F., Waters, S.B., Westmoreland, C.G. and Riester, L. (2002). Compositional Effects on The Properties of Si - Al – RE - Based Oxynitride Glasses (RE _ La, Nd, Gd, Y, or Lu), Journal of Am. Ceram. Society 85(4), 897-902.
  • Hampshire, S. and Pomeroy, M.J. (2004). Effect of Composition on Viscosities of Rare Earth Oxynitride Glasses, Journal of Non-Crystalline Solid 344(1-2), 1-7.
  • Hampshire, S. (2008). Developments in Oxynitride Properties Developments in Strategic Materials Ceramic Eng. and Science Proceedings 29(10). ; Crystallization,
  • Hampshire, S. (2008). Oxynitride Glasses, Journal of Ceramic Society 28, 1475- 1483.
  • Iftekhar, S., Grin, J., Gunawidjaja, P. and Eden, M. (2011). Glass Formation and Structure – Property – Composition Relations of the RE2O3–Al2O3–SiO2 (RE=La, Y, Lu, Sc) Systems, Journal of Am. Ceram. Society, 94 (8), 2429-2435.
  • Keyan, L. and Feng, X. (2009). Hardness of Materials: Studies at Levels From Atoms to Crystals, Chinese Science Bulletin.
  • Kleebe, H.J., Pezzotti, G., Ziegler, G., Microstructure and Fracture (1999). Toughness of Si3N4 Ceramics: Combined Roles of Grain Morphology and Second- ary Phase Chemistry, Journal of Am. Ceram. Society 82(7), 1857-1867.
  • Lofaj, F., Satet, R., Hoffmann, M.J., Lopez, A. and R.A. (2004). Thermal Expansion and Glass Transition Temperature of The Rare-Earth Doped Oxynitride Glasses, Journal of European Ceram. Soc. 24, 3377-3385.
  • Menke, Y., Baron, V. and Hampshire, S. (2000). Effect of Rare Earth Cations on Properties of Sialon Glasses, Journal of Non- Crystalline Solids 276, 145-150. Ojovan, M.I. Thermodynamic Symmetry Changes at Glass Transition, Entropy 10, 334-364. Configurons: Parameters and
  • Pauling, L. (1932). The Nature of The Chemical Bond. IV. The Energy of Single Bonds and The Relative Electronegativity of Atoms, Journal of the American Chemical Society 54(9), 3570-3582. Effects of Nitrogen on Structure and Properties, Journal of TheCeramicSociety of Japan 116(6), 755-761.
  • Pomeroy, J., Nestor, E., Ramesh, R. and Hampshire, S. (2005). Properties and Crystallization of Rare-Earth Si–Al–O–N Glasses Containing Mixed Trivalent Modifiers, Journal of Am. Ceram. Society 88(4), 875-881.
  • Ramesh, R., Nestor, E., Pomeroy, J. and Stuart, H. (1997). Formation of La-Si-Al-O-N Glasses And Their Properties, Journal of European Ceram. Soc. 17, 1933-1939.
There are 14 citations in total.

Details

Primary Language English
Journal Section Articles
Authors

Cem Orhun This is me

Emrah Dölekçekiç

Publication Date January 31, 2013
Published in Issue Year 2012 Volume: 13 Issue: 2

Cite

APA Orhun, C., & Dölekçekiç, E. (2013). INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES. Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering, 13(2), 127-134.
AMA Orhun C, Dölekçekiç E. INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES. AUJST-A. January 2013;13(2):127-134.
Chicago Orhun, Cem, and Emrah Dölekçekiç. “INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES”. Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering 13, no. 2 (January 2013): 127-34.
EndNote Orhun C, Dölekçekiç E (January 1, 2013) INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES. Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering 13 2 127–134.
IEEE C. Orhun and E. Dölekçekiç, “INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES”, AUJST-A, vol. 13, no. 2, pp. 127–134, 2013.
ISNAD Orhun, Cem - Dölekçekiç, Emrah. “INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES”. Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering 13/2 (January 2013), 127-134.
JAMA Orhun C, Dölekçekiç E. INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES. AUJST-A. 2013;13:127–134.
MLA Orhun, Cem and Emrah Dölekçekiç. “INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES”. Anadolu University Journal of Science and Technology A - Applied Sciences and Engineering, vol. 13, no. 2, 2013, pp. 127-34.
Vancouver Orhun C, Dölekçekiç E. INVESTIGATION ON THE EFFECT OF RARE EARTH (RE) CATION TO THE (RE+Ca)SiAlON GLASSES. AUJST-A. 2013;13(2):127-34.
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