Vickers and knoop indentation behaviour of cubic and partially stabilized zirconia crystals

Gogotsi, G. A.; Дуб, С. Н.; Ломонова, Е. Е.; Ozersky, B.I.

doi:10.1016/0955-2219(95)91431-m

Cited by 56 publications

(20 citation statements)

References 17 publications

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“…They found that for single 8Y-FSZ (8 mol %Y 2 O 3 -ZrO 2 single crystal) in the load range of 200-1900 mN, the index n calculated from the P-h curve was 1.873, which suggests that single 8Y-FSZ showed ISE behaviour. They also found this ISE result agreed well with the experimental results of another report [88] in which the hardness decreased as the indentation increased between the load range of 100-2000 mN. The same procedure was conducted in the 12Ce-TZP P-h curve and they found n = 1.808 within the load range 200-1900 mN.…”

Section: Nanoindentation Size Effect Of Materialssupporting

confidence: 88%

“…The same procedure was conducted in the 12Ce-TZP P-h curve and they found n = 1.808 within the load range 200-1900 mN. It also was consistent with the results (ISE behaviour) from zirconia ceramics [88,89]. However, for fused quartz, index n = 1.961 calculated from P-h curve in the load range of 200-1900 mN meant that this material showed almost no ISE behaviour [67].…”

Section: Nanoindentation Size Effect Of Materialssupporting

confidence: 84%

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Progress in Indentation Study of Materials via Both Experimental and Numerical Methods

et al. 2017

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Indentation as a method to characterize materials has a history of more than 117 years. However, to date, it is still the most popular way to measure the mechanical properties of various materials at microscale and nanoscale. This review summarizes the background and the basic principle of processing by indentation. It is demonstrated that indentation is an effective and efficient method to identify mechanical properties, such as hardness, Young's modulus, etc., of materials at smaller scale, when the traditional tensile tests could not be applied. The review also describes indentation process via both experimental tests and numerical modelling in recent studies.

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Section: Nanoindentation Size Effect Of Materialssupporting

confidence: 88%

Section: Nanoindentation Size Effect Of Materialssupporting

confidence: 84%

Progress in Indentation Study of Materials via Both Experimental and Numerical Methods

et al. 2017

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“…Vickers hardness for the 3 % YSZ transparent zirconia was determined as 1350 H v , a value that is consistent with that reported for single crystals of 3 % YSZ. [31] Similar values for the Vickers hardness for the 8 % YSZ were obtained, however, in this case the high uncertainties due to cracking and spalling, make them less reliable.…”

Section: Full Papersupporting

confidence: 53%

Transparent Nanometric Cubic and Tetragonal Zirconia Obtained by High‐Pressure Pulsed Electric Current Sintering

Anselmi‐Tamburini

Woolman

Munir

2007

Adv Funct Materials

251

185

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Transparent samples of cubic (8 mol % yttria) and tetragonal (3 mol % yttria) zirconia were prepared from nanometric powders by the pulsed electric current sintering process. The crystallite size of the resulting dense samples was about 50 nm in both cases. The consolidation pressure had a positive effect on the occurrence of transparency for both modifications. Transmittance in the near infrared for 1 mm thick samples is above the 60 % for the cubic (8 %YSZ) and above 50 % for the tetragonal (3 % YSZ) zirconia, representing between 70 and 80 % of the theoretical values of the two modifications. Samples had a yellowish‐brown coloration which was attributed to the presence of color centers. Annealing in oxygen improved transmittance initially, but prolonged annealing resulted in translucent samples. The role of porosity in transmittance is analyzed.

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“…The hardness and elastic modulus were found to be 13.2Gpa and 210 Gpa, respectively for the sample 'C' these measured nano mechanical properties hardness and elastic modulus of microwave sintered 8YSZ sample agreed well with mechanical properties found by the micro indentation technique of the previous research reports. Dhal et al (2007), Gogotsi et al (1995) and Donzel and Roberts (2000) proved the mechanical properties of 8YSZ sample measured by microhardness not depend on the various grain size of the samples prepared by different sintering techniques. Mazaheri et al (2009), performed two-step sintering method to sinter 8YSZ sample and measured the, hardness value13.51 G Pa by applying the micro indentation technique.…”

Section: Morphological Studies Of 8ysz Using Tem and Semmentioning

confidence: 86%

Mechanical properties of microwave sintered 8 mol% yttria stabilized zirconia

Babu¹,

Manohar²

2013

Int. J. Phys. Sci.

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This paper reports the synthesis and characteristics of nano sized 8 mol% yttria stabilized zirconia (8YSZ). The nano sized 8YSZ powder (15 nm) has been prepared by the sol-gel technique. The phase formation was confirmed by the X-Ray Diffraction (XRD) analysis and the particle size verified by transmission electron microscope (TEM). The prepared 8YSZ green samples were sintered in a microwave furnace at 1500°C for three different holding times, such as 5, 10 and 15 min. The density of the sintered samples was measured with the Archimedes method. This method revealed 98% of theoretical density of the 8YSZ sample. The surface morphology of the sintered samples was examined by the scanning electron microscope (SEM). The mechanical properties, including nanohardness, elastic modulus and coefficient of friction of the high density sample have been evaluated.

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Vickers and knoop indentation behaviour of cubic and partially stabilized zirconia crystals

Cited by 56 publications

References 17 publications

Progress in Indentation Study of Materials via Both Experimental and Numerical Methods

Progress in Indentation Study of Materials via Both Experimental and Numerical Methods

Transparent Nanometric Cubic and Tetragonal Zirconia Obtained by High‐Pressure Pulsed Electric Current Sintering

Mechanical properties of microwave sintered 8 mol% yttria stabilized zirconia

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