Crack-resistant Al2O3–SiO2 glasses

Obtaining “hard” and “crack-resistant” glasses have always been of great important in glass science and glass technology. However, in most commercial glasses both properties are not compatible. In this work, colorless and transparent xAl2O3–(100–x)SiO2 glasses (30 ≤ x ≤ 60) were fabricated by the aerodynamic levitation technique. The elastic moduli and Vickers hardness monotonically increased with an increase in the atomic packing density as the Al2O3 content increased. Although a higher atomic packing density generally enhances crack formation in conventional oxide glasses, the indentation cracking resistance increased by approximately seven times with an increase in atomic packing density in binary Al2O3–SiO2 glasses. In particular, the composition of 60Al2O3•40SiO2 glass, which is identical to that of mullite, has extraordinary high cracking resistance with high elastic moduli and Vickers hardness. The results indicate that there exist aluminosilicate compositions that can produce hard and damage-tolerant glasses.

[1]  Richard Weber,et al.  Structure of high alumina content Al2O3-SiO2 composition glasses. , 2008, The journal of physical chemistry. B.

[2]  Hartmut Schneider,et al.  Structure of SiO2–Al2O3 glasses: Combined X-ray diffraction, IR and Raman studies , 2005 .

[3]  K. Hirao,et al.  Inelastic deformation and structure of borate glasses , 1989 .

[4]  F. M. Ernsberger,et al.  Mechanical properties of glass , 1977 .

[5]  Charles R. Kurkjian,et al.  Indentation Behavior of Soda‐Lime Silica Glass, Fused Silica, and Single‐Crystal Quartz at Liquid Nitrogen Temperature , 1995 .

[6]  A. Masuno,et al.  In situ observation of containerless solidification from undercooled Lu2O3 and Y2O3 melts , 2008 .

[7]  F. Marumo,et al.  Structural Analysis of SiO2‐Al2O3 Glasses , 1982 .

[8]  M. Tomozawa,et al.  A glass with high crack initiation load: Role of fictive temperature-independent mechanical properties , 2009 .

[9]  P. McMillan,et al.  Al and Si coordination in SiO21bAl2O3 glasses and liquids: A study by NMR and IR spectroscopy and MD simulations , 1992 .

[10]  S. Inaba,et al.  Equation for estimating the Young's modulus, shear modulus and Vickers hardness of aluminosilicate glasses , 2000 .

[11]  J. Mackenzie,et al.  Direct calculation of Young's moidulus of glass , 1973 .

[12]  S. Sen,et al.  High-Resolution Multinuclear NMR Structural Study of Binary Aluminosilicate and Other Related Glasses , 2004 .

[13]  J. Mackenzie,et al.  Calculation of bulk modulus, shear modulus and Poisson's ratio of glass , 1975 .

[14]  M. Smedskjaer,et al.  Prediction of glass hardness using temperature-dependent constraint theory. , 2010, Physical review letters.

[15]  H. Eckert,et al.  Medium-Range Order in Sol–Gel Prepared Al2O3–SiO2 Glasses: New Results from Solid-State NMR , 2014 .

[16]  S. Kohara,et al.  Drastic Connectivity Change in High Refractive Index Lanthanum Niobate Glasses , 2013 .

[17]  Y. Kono,et al.  A system for measuring elastic wave velocity under high pressure and high temperature using a combination of ultrasonic measurement and the multi-anvil apparatus at SPring-8. , 2009, Journal of synchrotron radiation.

[18]  Hiroyuki Inoue,et al.  Glass formation of rare earth aluminates by containerless processing , 2012 .

[19]  S. Ito,et al.  Difference of cracking behavior due to Vickers indentation between physically and chemically tempered glasses , 2012 .

[20]  Hiroyuki Inoue,et al.  Refractive index dispersion, optical transmittance, and Raman scattering of BaTi2O5 glass , 2010 .

[21]  M. Edén,et al.  Structural rationalization of the microhardness trends of rare-earth aluminosilicate glasses: Interplay between the RE3 + field-strength and the aluminum coordinations , 2013 .

[22]  Liping Huang,et al.  Brittle to Ductile Transition in Densified Silica Glass , 2014, Scientific Reports.

[23]  T. Rouxel,et al.  Composition dependence of indentation deformation and indentation cracking in glass , 2013 .

[24]  H. Inoue,et al.  High Refractive Index of 0.30La2O3–0.70Nb2O5 Glass Prepared by Containerless Processing , 2010 .

[25]  M. Frey,et al.  Bulk glasses and ultrahard nanoceramics based on alumina and rare-earth oxides , 2004, Nature.

[26]  M. Tomozawa,et al.  Indentation creep of Na2O.3SiO2 glasses with various water contents , 1990 .

[27]  S. Yoshida,et al.  Densification and plastic deformation under microindentation in silicate glasses and the relation to hardness and crack resistance , 2013 .

[28]  Hiroyuki Inoue,et al.  High Elastic Moduli of a 54Al2O3-46Ta2O5 Glass Fabricated via Containerless Processing , 2015, Scientific Reports.

[29]  G. Beall,et al.  Immiscibility and Crystallization in A12O3‐SiO2 Glasses , 1969 .

[30]  J. Sehgal,et al.  A New Low‐Brittleness Glass in the Soda‐Lime‐Silica Glass Family , 2005 .

[31]  M. Grimsditch,et al.  Thermal and mechanical properties of rare earth aluminate and low-silica aluminosilicate optical glasses , 2005 .

[32]  Rene Gy,et al.  Ion exchange for glass strengthening , 2008 .

[33]  Liping Huang,et al.  Nanoindentation and Brillouin light scattering studies of elastic moduli of sodium silicate glasses , 2012 .

[34]  K. Hirao,et al.  Elastic Properties and Molar Volume of Rare‐Earth Aluminosilicate Glasses , 1992 .

[35]  T. Takei,et al.  SAXS analysis of textures formed by phase separation and crystallization of Al2O3–SiO2 glasses , 2001 .

[36]  H. Inoue,et al.  Glass‐forming region and high refractive index of TiO2‐based glasses prepared by containerless processing , 2012 .

[37]  S. Yoshida,et al.  Effect of densification on crack initiation under Vickers indentation test , 2010 .

[38]  P. McMillan,et al.  High-Resolution 27Al and 29Si MAS NMR Investigation of SiO2-Al2O3 Glasses , 1991 .

[39]  S. Inaba,et al.  Young's Modulus and Compositional Parameters of Oxide Glasses , 2004 .

[40]  S. Yoshida,et al.  Load dependence of densification in glass during Vickers indentation test , 2011 .

[41]  S. Ito.  Structural study on mechanical behavior of glass , 2004 .

[42]  R. Hand,et al.  Mechanical properties of silicate glasses as a function of composition , 2010 .

[43]  D. Wakabayashi,et al.  Enhanced plasticity of silica glass at high pressure , 2015 .

[44]  Hiroyuki Inoue,et al.  Transparent and High Refractive Index La2O3–WO3 Glass Prepared Using Containerless Processing , 2012 .

[45]  T. Rouxel,et al.  Poisson's ratio and the densification of glass under high pressure. , 2008, Physical review letters.

[46]  S. Yoshida,et al.  Measurements of density distribution around Vickers indentation on commercial aluminoborosilicate and soda-lime silicate glasses by using micro Raman spectroscopy , 2012 .

[47]  P. McMillan,et al.  The structures and vibrational spectra of crystals and glasses in the silica-alumina system , 1982 .

[48]  J. Mackenzie,et al.  Vicker's Hardness of glass , 1974 .

[49]  J. Grins,et al.  Composition‐Property‐Structure Correlations of Scandium Aluminosilicate Glasses Revealed by Multinuclear 45Sc, 27Al, and 29Si Solid‐State NMR , 2012 .

[50]  M. Bauchy,et al.  Rigidity transition in materials: hardness is driven by weak atomic constraints. , 2015, Physical review letters.

[51]  Jun Matsuoka,et al.  Crack Initiation Tendency of Chemically Strengthened Glasses , 2015 .