Unique glass formation and mechanical properties of zr cu based alloys

... Table 1. 2 Possible application fields for BMGs .5 Table 2. 1 Mechanical properties of Zr4 8. 5Cu5 1.5, Zr5 1Cu4 9, Zr4 9. 5Cu5 0.5, and Zr4 9Cu5 1  as‐cast  alloys,   with  various  volume  fraction  of ZrCu  martensite  in  the  amorphous  ... Figure 2. 6 The engineering compressive stress‐strain curves of Zr Cu amorphous  matrix  composites  with  varied  volume  fraction  of ZrCu  mar...

Ngày tải lên: 14/09/2015, 14:11

... spectra for 1.5 mm as-cast alloys: (Fe7< /b> 4B2 3Nd3 )9 6Nb4 (a), (Fe6< /b> 5. 5B3 1Nd3 .5)9 6Nb4 (b) , (Fe5< /b> 9B3 1Nd1 0)9 6Nb4 (c), (Fe6< /b> 7B2 3Nd1 0)9 6Nb4 (d), (Fe7< /b> 1B2 1Nd8 )9 6Nb4 (e) and < /b> (Fe6< /b> 8B2 5Nd7 )9 6Nb4 (4 mm) (f) 104 ... curves for 1.5 mm as-cast alloys: (Fe7< /b> 4B2 3Nd3 )9 6Nb4 (a), (Fe6< /b> 5. 5B3 1Nd3 .5)9 6Nb4 (b) , (Fe5< /b> 9B3 1Nd1 0)...

Ngày tải lên: 12/09/2015, 08:18

... performance characteristics and mechanical properties of bamboo Dissertation, Chinese Academy of Forestry, Beijing, China pp 147 Yusoff, M.N.M, A Abd.Kadir, and A.H Mohamed 1992 Utilization of bamboo ... the physical properties of pulp [Tamolong 1967; Zamuco et al 1969] Aging of a bamboo culm influences physical, chemical, and mechanical properties, and...

Ngày tải lên: 22/02/2014, 09:20

... http://www.nanoscalereslett.com/content/6/1/587 Page of Figure TEM and HRTEM images of Zn0.99 5Zr0 .005O Nps (a) The representative TEM image of Zn0.99 5Zr0 .005O and the inset is the SAED pattern (b) The HRTEM image of Zn0.99 5Zr0 .005O hysteresis ... of Zr Furthermore, the magnetism of the samples depends strongly on the doping Zr content, and Ms per Zr atom decrease...

Ngày tải lên: 20/06/2014, 22:20

... 2009 39 Therefore, the major aim of this work was to compare the curing characteristics and mechanical properties of organoclay- filled epoxidised natural rubber (ENR 50) nanocomposites and organoclay- filled ... agglomeration of organoclays All these observations are in concordance with the XRD patterns and confirmed a better dispersion of the organocla...

Ngày tải lên: 07/08/2014, 14:20

... al Table I Radius and Growth Strains (×10−6 ) mean value of tension wood and opposite wood zone from the ten studied trees Family Genus species author Radius of TW zone Radius of OW zone GS mean ... positions and were tension wood Mean values for tension wood properties were obtained from specimen corresponding to these 8, 1, positions (8, for Qualea rose...

Ngày tải lên: 07/08/2014, 16:21

... evaluate the variability in selected physical and mechanical properties of new inter-American poplar clones (P trichocarpa × deltoides) As poplar plantations are a local source of wood which take away ... End-use related properties of poplar wood 627 Table VI Density (kg/m3 ), modulus of elasticity and modulus of rupture (N/mm2 ) for a 7-layer plywood for...

Ngày tải lên: 07/08/2014, 16:21

... obtained from each tree were uniform The results of physical and mechanical characterisation of Atlas cedar wood from Southern Italy are summarised on table IV Table V refers about physical and mechanical ... compression strength and the bending MOE, the Atlas cedar wood is on average strong and yielding DISCUSSION AND CONCLUSIONS As for all the softwoo...

Ngày tải lên: 08/08/2014, 14:20

... Fitzgerald -1 9 99 14 Extracting Typical τ for Metals • τ ~1 0 -1 4 sec for metals in Drude model 3.225 © E.A Fitzgerald -1 9 99 15 Thermal Velocity • So far we have discussed drift velocity vD and scattering ... independent of magnitude of L and W Useful for working with films of thickness, t R R R 3.225 © H.L Tuller-20 01 17 How to Make Resistance Measurements Rc2 I Rc1 Rs V...

Ngày tải lên: 11/08/2014, 14:20

... For Si, Eg=1.1eV, and let µe and µh be approximately equal at 1000cm2/V-sec (very good Si!) σ~1010cm-3*1.602x1 0-1 9*1000cm2/V-sec=1.6x1 0-6 S/m, or a resistivity ρ of about 106 ohm-m max • • One important ... atoms per cm-3 – n~10 15, p~1020/10 15~ 1 05 σ/σi~(p+n)/2ni~n/2ni~1 05! Impurities at the ppm level drastically change the conductivity ( 5- 6 orders of magnitude) 3.2 25...

Ngày tải lên: 11/08/2014, 14:20

... conductivity: σ = 4.4 10 -1 8 S cm-1 T [°C] 900 -4 800 700 600 500 10 Y-cut -5 -1 σ [S cm ] 10 -1 σ0 = 2.1 S cm EA = 105 kJ mol -6 10 -1 -7 10 3.225 10 11 10 /T [1/K] 12 13 © H.L Tuller-2001 26 13  ... Substrate: Si wafer 20 40 60 80 110 100 90 80 70 60 50 40 30 20 10 -1 0 110 100 90 80 70 60 50 40 30 20 10 -1 0 20 MFC2 Feuchte Temp CO 40 NO2...

Ngày tải lên: 11/08/2014, 14:20

... Tuller-2001 Influence of Dopants on Electrical Conductivity of SrTiO3 log(σ / (Ωcm )-1 ) λ 0 .99 5 1,005 T = 800 °C no -1 ac -2 ce pto -3 rd op rd op ed ed -4 Sr2+ Ti4+ O 2-3 -5 acceptor donor -2 0 -1 6 ... Versatility High Strain (Pb0 .98 La0.02(Zr0.7Hf0.3)1-xTixO3 AFE­ FE System (C Heremans and H.L Tuller, J Euro Ceram Soc., 19, 11 39 ( 199 9).) Atmosphere de...

Ngày tải lên: 11/08/2014, 14:20

... are discrete 3. 225 © E Fitzgerald-1999 24 12 Representation of E,k for 1-D Material E= states electrons h 2k p = 2m 2m E EF All e- in box accounted for m=+1/2 ,-1 /2 En+1 En En-1 Quasi-continuous ... k y ) E(kx,ky) 2m ky kx 3. 225 © E Fitzgerald-1999 Representation of E,k for 3- D Material kz Ε(kx,ky,kz) ky kF E= m π2 2mE h3 Fermi Surface or Fermi Sphere k F = (3 n )3 vF = 2m kx 2π...

Ngày tải lên: 11/08/2014, 14:20

... when you join these together? 3.225 © E Fitzgerald-1999 11 Drift and Diffusion - - - - - + + + + + + + + Holes diffuse Electrons diffuse - - - - - - + + + + E + + + + An electric field forms due ... force of diffusion until EF is flat - - + + + + Holes diffuse Electrons diffuse 3.225 © E Fitzgerald-1999 13 Space Charge, Electric Field and Potentia...

Ngày tải lên: 11/08/2014, 14:20

... of positive and negative ions 3.225 © E Fitzgerald-1999 © H.L Tuller, 2001 Ferroelectrics Applications • Capacitors • Non-volatile memories • Photorefractive materials 3.225 Characteristics of ... τ=9.5x1 0-1 1 sec, ω~1010 microwave oven, transmission of E-M waves 3.225 © E Fitzgerald-1999 19 Dielectric Constant vs Frequency • Completely general ε due to the localized charge in m...

Ngày tải lên: 11/08/2014, 14:20