Mechanical strength of cold-sintered zinc oxide under biaxial bending
Source abstract
Abstract
Zinc oxide is densified to 97% by the cold sintering process using an aqueous zinc acetate solution as the secondary transport phase. The mechanical response of the cold-sintered zinc oxide ceramics is investigated through the ball-on-three-balls biaxial bending technique. The analysis demonstrates that ZnO cold-sintered samples follow a Weibull distribution with a characteristic strength (σ0 ~ 65 MPa) and Weibull modulus (m ~ 8). Phase purity and residual secondary phases were analyzed via X-ray diffraction and Raman spectroscopy. This report provides an initial demonstration of the mechanical properties of cold-sintered parts in the as-pressed and unmodified state and serves for comparison with conventionally prepared ceramics.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Microwave Dielectric Ceramics Synthesis · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (13)
Show source-provided references
1. Maria JP, Kang X, Floyd RD et al (2017) Cold sintering: current status and prospects. J Mater Res 32:3205–321810.1557/jmr.2017.262 ↗
2. Gonzalez-Julian J, Neuhaus K, Bernemann M et al (2018) Unveiling the mechanisms of cold sintering of ZnO at 250 °C by varying applied stress and characterizing grain boundaries by Kelvin Probe Force Microscopy. Acta Mater 144:116–12810.1016/j.actamat.2017.10.055 ↗
3. Funahashi S, Guo J, Guo H et al (2017) Demonstration of the cold sintering process study for the densification and grain growth of ZnO ceramics. J Am Ceram Soc 100:546–55310.1111/jace.14617 ↗
4. Kang X, Floyd R, Lowum S et al (2018) Mechanism studies of hydrothermal cold sintering of zinc oxide at near room temperature. Manuscript submitted for publication10.1111/jace.16340 ↗
5. Börger A, Supancic P, Danzer R (2002) The ball on three balls test for strength testing of brittle discs: stress distribution in the disc. J Eur Ceram Soc 22:1425–143610.1016/S0955-2219(01)00458-7 ↗
6. Yoshimura HN, Molisani AL, Narita NE et al (2006) Mechanical properties and microstructure of zinc oxide varistor ceramics. Mater Sci Forum 530–531:408–41310.4028/www.scientific.net/MSF.530-531.408 ↗
7. European Committee for Standardization (1996) EN 843-5: advanced technical ceramics—monolithic ceramics—mechanical tests at room temperature—part 5: statistical analysis. European Committee for Standardization, Brussels
8. Balzer B, Hagemeister M, Kocher P, Gauckler LJ (2004) Mechanical strength and microstructure of zinc oxide varistor ceramics. J Am Ceram Soc 87:1932–193810.1111/j.1151-2916.2004.tb06343.x ↗
9. Lu C, Danzer R, Fischer FD (2004) Scaling of fracture strength in ZnO: effects of pore/grain-size interaction and porosity. J Eur Ceram Soc 24:3643–365110.1016/j.jeurceramsoc.2003.12.001 ↗
10. Cuscó R, Alarcón-Lladó E, Ibáñez J et al (2007) Temperature dependence of Raman scattering in ZnO. Phys Rev B 75:165202-1–165202-1110.1103/PhysRevB.75.165202 ↗
11. Ben Yahia S, Znaidi L, Kanaev A, Petitet JP (2008) Raman study of oriented ZnO thin films deposited by sol-gel method. Spectrochim Acta Part A Mol Biomol Spectrosc 71:1234–123810.1016/j.saa.2008.03.032 ↗
12. Yang MM, Crerar DA, Irish DE (1989) A Raman spectroscopic study of lead and zinc acetate complexes in hydrothermal solutions. Geochim Cosmochim Acta 53:319–32610.1016/0016-7037(89)90384-0 ↗
13. Johnson MK, Powell DB, Cannon RD (1981) Vibrational spectra of carboxylato complexes-I. Infrared and Raman spectra of beryllium(II) acetate and formate and of zinc(II) acetate and zinc(II) acetate dihydrate. Spectrochim Acta 37A:899–90410.1016/0584-8539(81)80011-6 ↗