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Property↑↓Value↑↓Conditions↑↓Reference↑↓
Friction coefficient0.04At the begining of scratching & from an abrupt increase in friction during scratching, width of scratch(1.75 um) at about 17-20 mN normal load(measured from SEM images),critical load=9 mN.J.Mater.Res,Vol.12,No.1,Jan 1997, p.59
Friction coefficient0.35At the end of scratching & from an abrupt increase in friction during scratching, width of scratch(1.75 um) at about 17-20 mN normal load(measured from SEM images),critical load=9 mN.J.Mater.Res,Vol.12,No.1,Jan 1997, p.59
Friction coefficient(final)0.35Values obtained during scratching, critical load=9 mN,width of scratch(by SEM observations)=1.75umJ.Mater.Res.,Vol.12,No.1,Jan1997, p.59
Friction coefficient(initial)0.04Values obtained during scratching, critical load=9 mN,width of scratch(by SEM observations)=1.75umJ.Mater.Res.,Vol.12,No.1,Jan1997, p.59
Friction coefficient,final0.06Sliding against a spherical diamond tip (radius=20um)at 10 mN normal load, 7.0 mmstroke length,0.1 Hz frequency,and 1.0 mm/sec average linear speed for a sliding distance of 4m under an ambient temperature of about 22+-1 C and a relative humidity of about 45+-5% RH.J.Mater.Res,Vol.12,No.1,Jan 1997, p.60
Friction coefficient,final0.46Sliding against a single-crystal sapphire ball(diameter=3mm) at 10 mN normal load,7.0 mmstroke length,0.1 Hz frequency,and 1.0 mm/sec average linear speed for a sliding distance of 4m under an ambient temperature of about 22+-1 C and a relative humidity of about 45+-5% RH.J.Mater.Res,Vol.12,No.1,Jan 1997, p.60
Friction coefficient,initial0.06Sliding against a spherical diamond tip (tip radius, 20 um) at 10 mN normal load, 7.0 mm stroke length, 0.1 Hz frequency, and 1.0 mm/sec average linear speed for a sliding distance of 4 m under an ambient temperature of 22 +-1 deg C and a relative humidity of about 45 +-5% RH.J.Mater.Res,Vol.12,No.1,Jan 1997, p.60
Friction coefficient,initial0.3Sliding against a single-crystal sapphire ball(diameter,3mm) at 10 mN normal load,7.0 mmstroke length,0.1 Hz frequency,and 1.0 mm/sec average linear speed for a sliding distance of 4m under an ambient temperature of about 22+-1 C and a relative humidity of about 45+-5% RH.J.Mater.Res,Vol.12,No.1,Jan 1997, p.60
Hardness12.6 GPaValues obtained by nanodentation at a load of 15 mN and indentation depth of 265 nm at peak load.J.mater.Res,Vol. 12,No.1,Jan1997, p.59
Hardness12.8 GPaValues obtained by nanodentation at a load of 0.2 mN with indentation depth at peak load 24 nm.J.mater.Res,Vol. 12,No.1,Jan1997, p.59
Roughness(Rms)0.18 nmValue measured using AFM at a scan size of 1 um x 1 um.J. Mater. Res., Vol. 12 No. 1, Jan 1997, p.60
Young's Modulus203 GPaValues obtained by nanodentation at a load of 0.2 mN with indentation depth at peak load 24 nm.J.mater.Res,Vol. 12,No.1,Jan1997, p.59
Young's Modulus181 GPaValues obtained by nanodentation at a load of 15 mN and indentation depth of 265 nm at peak load.J.mater.Res,Vol. 12,No.1,Jan1997, p.59
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