Advances in Powder and Ceramic Materials Science: Advances in Ceramic Materials and Processes IV
Sponsored by: TMS Extraction and Processing Division, TMS Materials Processing and Manufacturing Division, TMS: Materials Characterization Committee, TMS: Powder Materials Committee
Program Organizers: Bowen Li, Michigan Technological University; Dipankar Ghosh, Old Dominion University; Eugene Olevsky, San Diego State University; Kathy Lu, University of Alabama Birmingham; Faqin Dong, Southwest University of Science and Technology; Jinhong Li, China University of Geosciences; Ruigang Wang, Michigan State University; Alexander Dupuy, University of Connecticut
Wednesday 2:00 PM
March 22, 2023
Room: 30A
Location: SDCC
Session Chair: Eugene Olevsky, San Diego State University
2:00 PM Introductory Comments
2:05 PM Invited
Refractories Ceramic Cements Based on Double Oxides: Nickolai Iliukha1; 1Kyiv University
New cements contains double oxides and aluminates of calcium, barium, strontium. The date obtained allow to classify new cements as high-property: fire-proof, quick-hardening and high-strength binders. The synthesis of cement clinker takes place through solid phase reactions. The new developed cements of the highest fire resistance show only insignificant loss of strength when being heated, which can be accounted for by formation of high temperature-proof epitaxial contacts between the new hydrate formations and double oxides grains.The development of new high temperature composites based on zirconium cements for the application in various consuming industries has been illustrated and is well documented in terms of performance improvements. They are meant to protect units from influence of temperature more than 2073 K. They are used for coating of high temperature head treatment, in coating of fuel - construction, in coating of furnace for making fuel, carbon-reactor, H2-Furnace, petrochemical reactors.
2:25 PM
Printed Carbon Nanotubes and Graphene Heaters for Drying Ceramics: Ziyad Sherif1; John Patsavellas1; Konstantinos Salonitis1; Shoaib Sarfraz1; 1Cranfield University
Ceramic manufacturing process has seen several advancements with the evolution of new technologies. Still delays exist in the process due to the lack of process control. This paper investigates the feasibility of using longwave infrared radiation emitted by a printed Carbon Nanotubes and Graphene (CNTG) heater for pre-drying a clay sample. The CNTG heater emits infrared radiation with a relatively low DC voltage supply. By radiant heat transfer, homogeneous and uniform drying has been observed. The penetrative capability of the IR energy which warms the inside of the sample is shown, as well as the results of comparing the CNTG heater with a commercially available IR heater. The study establishes that the CNTG heater is capable of reducing the lead time of ceramics drying using penetrative IR.
2:45 PM
Enhancing Reinforcing Efficiency of Sic Particles in Aluminium Matrix Composites with Intercalated Oxygen Atoms: Miran Joo1; Donghyun Bae1; 1Yonsei University
In metal matrix composites (MMCs), the interface between the metal matrix and reinforcement critically influences mechanical properties of MMCs because the load can transfer at the interface via the interfacial shear stress. We develop a new aluminium composite containing silicon carbide (SiC) nanoparticles dispersed in an interstitial aluminium alloy (called as I-Al) matrix where oxygen atoms are intercalated in the aluminium. SiC nanoparticles less than 60 nm in diameter are uniformly dispersed in the I-Al matrix via powder metallurgy. High-energy ball milling enables oxygen in the I-Al to be uniformly distributed in the composite powder. Oxygen are also observed at the interface of Al/SiC nanoparticles. Oxygen at the interface can provide additional chemical bonding other than the bonding at the interface of Al/SiC nanoparticles, improving interface bonding of the composites. Therefore, the reinforcing efficiency of composites containing the intercalated oxygen is enhanced.
3:05 PM
Mixed-Alkali Effect on Metaphosphate Glass Forming Liquids: Tae-Min Yeo1; Jung-Wook Cho1; 1POSTECH
Continuous substitution of one alkali with another is known to result in the so-called mixed-alkali effect (MAE), typically characterized by a strong nonlinear compositional variation in the thermal and transport properties of various glass-forming systems such as the glass transition temperature Tg, ionic conductivity and viscosity. However, systematic investigations of the MAE on the rheological behavior of glass-forming liquids remain largely missing in the literature. In this work, the rheological behavior of supercooled mixed-alkali metaphosphate liquids of general composition LixNa1-xPO3 is studied using oscillatory parallel plate rheometry. The results of this study detailing the MAE on Tg, fragility and viscoelasticity of these liquids will be reported, and the fundamental nature of this effect will be discussed.
3:25 PM Break
3:40 PM Cancelled
Weathering Resistance of Post-consumer Glass and Sawdust Reinforced Polyester Composites: Kator Jomboh1; Mohammed Yakubu2; Wilson Eze3; Adele Garkida2; Emmanuel Alemaka2; 1University of Maiduguri, Borno State; 2Ahmadu Bello University, Zaria; 3Nigerian Institute of Leather and Science Technology, Zaria
Weathering resistance test was carried out to determine the ability of post-consumer glass and sawdust reinforced polyester composite to withstand outdoor service conditions using water absorption (WA) and tensile properties. 16 samples were investigated consisting of various percentage by weight of post-consumer glass, sawdust as well as hybrid compositions. Test pieces were submerged in distilled water for 35 days and weighed on a daily basis to determine the level of absorption. Changes in tensile strength before and after water absorption were recorded and compared. Samples 5/27.5/67.5, 0/40/60 and 0/20/80 wt.% of sawdust/post-consumer glass/polyester had the lowest WA of 1.23%, 1.91%, 1.36% respectively while hybrid sample 20/20/60 wt.% had the highest WA of 7.46%. Hybrid samples 5/27.5/67.5, 7/33/60, 20/20/60 wt.% with original tensile strength of 11.60, 19.76, 10.25 MPa respectively had an improved tensile strength of 12.63, 22.84, 12.85 MPa respectively. Generally, tensile strength increased after water absorption indicating increase in weathering resistance which suggests that the composite material can be employed as particle board for outdoor application.