Advances in Powder and Ceramic Materials Science: Poster Session
Sponsored by: TMS Extraction and Processing Division, TMS: Materials Characterization Committee
Program Organizers: Bowen Li, Michigan Technological University; Shefford Baker, Cornell; Huazhang Zhai, Beijing Institute of Technology; Sergio Monteiro, Instituto Militar de Engenharia; Rajiv Soman, Eurofins EAG Materials Science LLC; Faqin Dong, Southwest University of Science and Technology; Jinhong Li, China University of Geosciences; Ruigang Wang, Michigan State University
Tuesday 5:30 PM
February 25, 2020
Room: Sails Pavilion
Location: San Diego Convention Ctr
Session Chair: Bowen Li, Michigan Technological University; Jinhong Li, China University of Geosciences (Beijing)
Cancelled
K-21 (Invited): Enhanced Stability and Carrier Transport Quality of α-CsPbI3 Perovskite Nanocrystals with Reduced Graphene Oxide: Hong Lin1; Qi Zhang1; 1Tsinghua University
Cesium lead tri-iodide perovskite (CsPbI3) has shown great potentials in optoelectronic applications, such as solar cells, light emitting diodes, photodetectors, and lasers. However, CsPbI3 still suffers from its poor crystal phase stability and serious photoluminescence (PL) quenching. Here, an in-situ solution growth method was used to prepare α-CsPbI3 nanocrystals (NCs) with improved stability and carrier transport quality by introducing reduced graphene oxide (rGO), which could reduce the number of ligands on the surface of α-CsPbI3 NCs, provide protection against air and moisture, and enhance the carrier separation, carrier transport properties of nanocrystals. Particularly, α-CsPbI3 NCs/rGO heterostructures show a suitable band gap of ~1.74 eV and a PL Quantum Yield (PLQY) of ~10.7%. The decay lifetime of these heterostructures was maintained at ~43.5 ns and PLQY maintained ~68% of the initial value when stored in ambient conditions for ~4 weeks.
K-22: Bioinspired Ceramic Monoliths from Freeze-Casting for Filtration Applications: Sean Garner1; Zhixiong Li1; Doheon Lee1; Dimitri Deheyn1; Joanna McKittrick1; 1University of California, San Diego
The silica cell walls of diatom contain hierarchical porosity and are widely available in its fossilized form, diatomite. This research utilizes this cost-effective source of porous silica in a unidirectional freezing process (i.e. freeze-casting), which produces membranes with unidirectional lamellar walls (~10 µm spacing) that allow for efficient mass transport of fluids. Control over the monolith was explored by varying the ratio of diatomite and a flux material, sodium carbonate, and the solids ratio in the slurry before casting. Properties are measured using scanning electron microscopy, mercury porosimetry, and mechanical testing. The membranes (3.4 mm in thickness) undergo dead-end filtration of methylene blue dye and monodisperse latex beads to quantify the filtration performance through chemical adsorption and depth filtration mechanisms, respectively. These ceramic membranes are cost-effective and highly customizable for various filters, catalyst supports, and tissue engineering scaffolds. This work is supported by UC San Diego’s Chancellor’s Interdisciplinary Collaboratories grant.
K-23: Evaluation of the Incorporation of Marble and Granite Residue in Coating Mortars: Euzebio Zanelato1; Jonas Alexandre1; Afonso Azevedo2; Markssuel Marvila3; Gustavo Xavier1; Sergio Monteiro4; 1UENF; 2UFF; 3UCAM; 4IME
The disposal of ornamental rock waste generates serious environmental impacts, where incorporation in construction materials would be a solution with low environmental impact. The objective of this work is to evaluate the performance of the incorporation of waste from the industry of both marble and granite in mortars. The residues were incorporated at different levels of incorporation (25%, 50%, 75% and 100%) using different mortar traces (1: 1: 6 and 1: 2: 9). The materials were characterized and the mortars evaluated in the fresh state by the consistency index tests and Squeeze Flow. In the hardened state, mechanical strength, water absorption and tensile strength tests were performed. The results indicated that the marble residue presents great potential of use, while the incorporation of granite shows a loss of performance.
K-24: Influence of Construction and Demolition Waste Incorporation in Concrete: Antônio Macedo1; Euzebio Zanelato2; André Manhães1; Afonso Azevedo3; Markssuel Marvila1; Jonas Alexandre2; Sergio Monteiro4; Lucio Petrucci1; 1UCAM; 2UENF; 3UFF; 4IME
The construction industry is the human activity that consumes the most natural resources. This occurs from before the beginning of the work, with the extraction of minerals for production of aggregates and cement. Considering the high consumption of materials in the construction and the durability of the buildings, the continuous generation of CDW (Construction and Demolition Waste) presents itself as a problem. The objective of this work is to verify the influence that the incorporation of CDW promotes in the concrete properties. The CDW was incorporated into 50% and 100% replacement of natural sand. Materials and concrete characterization tests were performed by slump test, water absorption by immersion, water absorption by capillarity and mechanical strength. The tests indicated that the presence of CDW improves the performance of the concrete, increasing its resistance and decreasing its water absorption.
Cancelled
K-25: Manufacturing and Characterization of Ceramics Made of Kaolinite Clay and Sewage Sludge from the Anodizing Industry: Andrés Ramírez1; Mauricio Correa1; Henry Colorado1; 1Universidad de Antioquia
This project is about the manufacturing and characterization of ceramics-based on kaolinite clay used as binder and sewage sludge obtained from the galvanizing industry at Colombia. This sludge is classified as a hazardous waste and therefore the main aim of this project is to give solution to this waste stabilization and valorization in as a structural material. This sludge was dried up to have a powdered material. Then, it was mixed with the clay powders and water, at 35 and 45wt% of water with respect to the total powder mix. Samples with 0, 5, 10, 15, 20, and 25wt% contents of sewage sludge were fabricated and tested with compression tests. Other materials characterization techniques used DRX, FRX, SEM and Granulometry. Leaching tests in order to analyze the potential hazardous components were included as well.
K-26: Microstructure Characterization of Annealed Polycrystalline YIG Samples Prepared from the Sol-gel Method Using 2d EBSD: Minji Kim1; Minsun Jang1; Youngkyun Son1; Kisuk Lee1; Sukbin Lee1; 1Ulsan National Institute of Science and Technology
We investigated the microstructure of annealed polycrystalline yttrium iron garnets (YIGs) fabricated by a Sol-Gel method using 2d EBSD. The YIG samples were annealed at 1400 ℃ for 2h 33min and 23h 34min in air and furnace-cooled. We observed the characteristics of isotropic grain growth during annealing in terms of grain size distribution, grain texture (misorientation distribution functions (MDFs), orientation distribution functions (ODFs) and grain boundary plane/character distributions. We examined the relationship between the typical crystallographic planes in YIGs and the grain boundary population to validate the observed grain boundary plane/character distributions.
K-27: Polymer Fibers from Waste Tires and Sugar Cane Molasses for Soil Improving: Juan Jimenez-Hoyos1; Henry Colorado1; 1Universidad de Antioquia
This investigation shows results about the use of recycle tires polymer fibers (RTPF) and sugar cane molasses blended with kaolin clay aiming soil improving. RTPF were obtained from a tire recycled company and the molasses was obtained from a sugar cane manufacturer, both located at Colombia. The characterization was conducted with scanning electron microscopy, compression strength, particle size distribution, x-ray diffraction, compressive and density tests. Results showed that unconfined compressive strength improved about 1419 kPa to 2037 kPa for samples with 0.0wt% of fibers and 0.0wt% molasses, to 0.1wt% of fibers and 2.0wt% molasses with respect to the dry weight of the soil. Also, soil microorganisms where found in some of the samples.
K-28: Preparation of Lithium and Terbium Doped Yttrium Borate: Xiaoling Tan1; 1Qinghai University
Y(0.90−x),Li(x))BO(3−δ):Tb0.10film was fabricated via co-precipitation of lithium and terbium within yttrium borate. The doping concentration of lithium (1%, 3% and 5%) studied in detail. The structure, morphology and optical properties of the YBO3 matrix under the co-doping of Tb and Li were investigated. The XRD diffraction peaks were confirmed as the typical characteristic of hexagonal YBO3. With the increase of the doping concentration of Li3+, the intensity of the diffraction peak in the graph increases, indicating that the addition of Li3+ sufficiently improved the crystallinity of films. The surface of films was found to comprise with irregular particles of an average size 200-400 nm. The luminescence intensity of the film was found to increase within 1%-3% and decrease as the doping concentration of Li at 3%-5%.
Cancelled
K-29: Preparation of Na4V2O7 Powder by Solid-state Reaction: Guishang Pei1; Junyi Xiang1; Zhongci Liu1; Dapeng Zhong1; Feifei Pan1; Xuewei Lv1; 1Chongqing University
The sodium pyrovanadate (Na4V2O7) powder was synthesized by solid-state reaction using NaCO3 and V2O5 as raw materials, the preparation process was evaluated by thermodynamic software Factsage® with the minimum Gibbs free energy principle, effect of temperature and partial pressure of carbon dioxide were first analyzed, and the results indicated that the reaction proceed intensively with increasing temperature and reducing partial pressure of carbon dioxide, the TG-DSC, SEM, XRD were applied to further characterize the preparation process. In addition, Non-isothermal kinetics with a single scan rate was applied to the solid-state reaction, the average apparent activation energy of this solid-state reaction was obtained using Freeman-Carroll method.
K-30: Preparation of YBO3:Ce3+ Film via Impregnation-lifting Method and Its Photoluminescence Property: Hongen Nian1; 1Qinghai Institute of Salt Lakes, Chinese Academy of Sciences
The YBO3 films with Tb3+ doping were prepared by sol-gel and impregnation-lifting method. The surface of Y1-xTbxBO3 film is uniformly arranged in nanocrystals and consists of irregular particles with a particle size of 100-200 nm. The luminescence intensity of Y1-xTbxBO3 films was found to increases in the first stage and then decrease with the doping percentage of Tb3+. The amount of dosage of 10% Tb3+ was confirmed to be more favorable in achieving a higher degree of crystallinity as well as large specific surface area. The film has a mean square roughness of 19.8 nm based on the AFM analysis. The octahedral coordinated Y3+ was indicated to be substituted by Tb3+ judged from radius calculation. The strongest peak in the UV excitation spectrum of Y1-xTbxBO3 film was found at 539 nm is at 358 nm. Two emission peaks in Y1-xTbxBO3 film were located at 485 nm and 539 nm
K-31: Process Optimization of Foaming Ceramics Made from Blast Furnace Slag and Fly Ash: Sheng Kai Tao1; 1Northeastern University
Feasibility of preparing foamed ceramics using BFS and fly ash as main materials was proved. On this basis, sintering temperature, sintering time, type of foaming agent, dosage of fly ash and foaming agent were considered to optimize the preparation process. The results of preliminary orthogonal test showed that the significance order of factors is sintering temperature > type of foaming agent > dosage of fly ash > dosage of foaming agent > sintering time. Uniform design based on the result of orthogonal test shows that the porosity of foam ceramic increases first and then decreases between the sintering temperature of 1190℃~1210℃ and the fly ash content of 30%~50%. The porosity increases between the foaming agent content of 0.5%~3%. The preparation parameters with the highest foaming rate were the sintering temperature of 1200℃, 42.5% dosage of fly ash and 3% dosage of iron oxide ( as foaming agent ).
K-32: Synthesis of Silicate Zinc Bioceramic via Mechanochemical Technique: Sorour Sadeghzade1; Rahmatollah Emadi2; Fariborz Tavangarian1; 1Pennsylvania State University, Harrisburg; 2Isfahan University of Technology
Hardystonite is currently recognized as a biocompatible bio-ceramic material for a range of medical applications. In this study, pure nano-crystalline hardystonite powder was prepared by mechanochemical synthesis of zinc oxide, silicate oxide, and egg shell in a planetary ball mill followed by sintering. The effect of time and sintering temperature on the formation mechanism of nano- hardystonite was studied. It was found that pure nano-crystalline hardystonite powder formation occurred following 20h of milling and subsequent sintering at 1000˚C for 3h. The measured crystallite size of powder was found to be around 30nm.
K-33: The Hardystonite/PA66 Composite for Using as the Intervertebral Fusion Cage: Fariborz Tavangarian1; Sorour Sadeghzade1; Rahmatollah Emadi2; 1Pennsylvania State University, Harrisburg; 2Isfahan University of Technology
The aim of this study was to design and evaluate nano-hardystonite/polyamide 66 composites with close mechanical properties to the trabecular bone to prevent the stress shielding phenomenon for bone tissue engineering applications. This composite can be used as an intervertebral fusion cage to perform spinal fusion between vertebrae in the lumbar spine. The pure nano-hardystonite powder was fabricated by combustion method at 900 °C following by 5 hours ball mill. The nano-hardystonite/Polyamide 66 and nano-hydroxyapatite/Polyamide 66 cage were prepared by injection molding method to compare the mechanical and biological properties. In this end, the X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized to characterize the prepared powder and cage samples. Based on the results, the addition of 30% nano-hardystonite improved both mechanical and bioactivity properties. The optimum hardystonite/PA66 samples revealed the compressive strength and elastic modulus of 69.19 ± 0.89 MPa and 2.56 ± 0.5 GPa, respectively, compared to 53.45 ± 1.2 MPa and 3.45 ± 0.3 GPa in hydroxyapatite/PA66 sample, respectively. In addition, observation of the superior apatite formation ability of hardystonite/PA66 compared to hydroxyapatite/PA66 indicated that it can be used as a spinal vertebrae replacement material.