Synthesis and Sintering最新文献_第2页

Is synthesizing a Cu35Co35Ni20Ti5Al5 high-entropy alloy beyond the rules of solid-solution formation? 合成 Cu35Co35Ni20Ti5Al5 高熵合金是否超越了固溶体形成的规律？

Synthesis and Sintering Pub Date : 2023-12-01 DOI: 10.53063/synsint.2023.34177

Samaneh Mamnooni, Ehsan Borhani, Hassan Heydari

引用次数: 0

Numerical optimization of sample and die geometric parameters to increase the attainable temperature during spark plasma sintering of TiC ceramics 对样品和模具几何参数进行数值优化，以提高 TiC 陶瓷火花等离子烧结过程中的可达到温度

Synthesis and Sintering Pub Date : 2023-11-20 DOI: 10.53063/synsint.2023.34179

Saeed Mohammad Bagheri, Mohsen Naderi, M. Vajdi, Farhad Sadegh Moghanlou, Ali Tarlani Beris

{"title":"Numerical optimization of sample and die geometric parameters to increase the attainable temperature during spark plasma sintering of TiC ceramics","authors":"Saeed Mohammad Bagheri, Mohsen Naderi, M. Vajdi, Farhad Sadegh Moghanlou, Ali Tarlani Beris","doi":"10.53063/synsint.2023.34179","DOIUrl":"https://doi.org/10.53063/synsint.2023.34179","url":null,"abstract":"The present study offers a comprehensive thermal modeling of spark plasma sintering (SPS) for a titanium carbide (TiC) sample. Utilizing COMSOL Multiphysics Software, the research investigates the temperature distribution within the TiC sample, situated within a graphite die. The study employs governing equations for heat diffusion, augmented by terms accounting for Joule heating, to calculate temperature variations. Boundary conditions, particularly at the upper and lower limits of the system, are explicitly accounted for, with cooling mechanisms modeled as convection. Through the application of the Taguchi method and Analysis of Variance (ANOVA), the study identifies the diameter of the sintering sample as the most significant parameter affecting the maximum temperature at the center of the TiC sample, with a significance of about 87%. The outer diameter of the graphite die followed with a significance of slightly more than 10%, and the thickness of the TiC sample had a significance of around 2%. The findings contribute to a nuanced understanding of the SPS process, offering valuable insights for optimizing the sintering parameters. Numerical results further underscore the importance of specific geometric parameters in the SPS process. This study serves as a robust foundation for future research aimed at refining the SPS process for TiC samples and other materials.","PeriodicalId":22113,"journal":{"name":"Synthesis and Sintering","volume":"19 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139257586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent advances in synthesis of MXene-based electrodes for flexible all-solid-state supercapacitors 用于柔性全固态超级电容器的 MXene 基电极合成的最新进展

Synthesis and Sintering Pub Date : 2023-09-27 DOI: 10.53063/synsint.2023.33163

Asieh Akhoondi, Mostafa Y. Nassar, Brian Yuliarto, Hicham Meskher

{"title":"Recent advances in synthesis of MXene-based electrodes for flexible all-solid-state supercapacitors","authors":"Asieh Akhoondi, Mostafa Y. Nassar, Brian Yuliarto, Hicham Meskher","doi":"10.53063/synsint.2023.33163","DOIUrl":"https://doi.org/10.53063/synsint.2023.33163","url":null,"abstract":"Various energy storage sources have been developed so far, among which supercapacitors are more important for the forthcoming generations due to their small size and portability. Supercapacitors as good alternatives to batteries have recently attracted more attention because they have higher power and excellent charging-discharging rate which is considered as a challenging issue that limits the use of batteries. Supercapacitors also have other advantages over batteries, including higher reversibility and cycle life, lower maintenance costs, and safer electrode materials. MXenes have emerged as a new class of 2D composites in electrode materials for supercapacitors as low-cost and environment-friendly carbides and nitrides. MXenes are suitable inorganic compounds with excellent electrochemical properties and mechanical integrity to improve supercapacitor energy density at a new interval. This review presents new synthesis strategies to prevent the self-accumulation of MXene layers. First, the fundamental working theories of different supercapacitors are outlined. Next, an overview of the electrode material based on MXenes is outlined, and the latest solutions for increasing the active sites and improving the ion transfer rate have been collected. Hybridization and doping of MXenes change the properties of the composite, leading to a transformation in the structure and an increase in the capacitance. Furthermore, the utilization of double-transition metal MXenes solves challenges such as structural destruction and short life spans in multiple charge-discharge cycles. Then evaluation of the new MXene-based electrode materials in all-solid-state supercapacitors has been summarized. Finally, an overview of the latest developments in the creation of all-solid-state flexible supercapacitors as well as our predictions for future lines of inquiry is provided.","PeriodicalId":22113,"journal":{"name":"Synthesis and Sintering","volume":"184 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139335275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of residual carbon content and morphology of B4C powders synthesized under different conditions 不同条件下合成的B4C粉末的残碳含量和形貌比较

Synthesis and Sintering Pub Date : 2023-09-26 DOI: 10.53063/synsint.2023.33171

Seyed Faridaddin Feiz, Leila Nikzad, Hudsa Majidian, Esmaeil Salahi

引用次数: 0

Corrosion behavior of TiN and TiCN coatings synthesized by PVD on the spark plasma sintered NiTi substrate PVD合成TiN和TiCN涂层在放电等离子烧结NiTi基体上的腐蚀行为

Synthesis and Sintering Pub Date : 2023-09-26 DOI: 10.53063/synsint.2023.33166

Nasim Botshekanan, Hudsa Majidian, Mohammad Farvizi

{"title":"Corrosion behavior of TiN and TiCN coatings synthesized by PVD on the spark plasma sintered NiTi substrate","authors":"Nasim Botshekanan, Hudsa Majidian, Mohammad Farvizi","doi":"10.53063/synsint.2023.33166","DOIUrl":"https://doi.org/10.53063/synsint.2023.33166","url":null,"abstract":"TiN and TiCN coatings have garnered widespread attentions in the field of materials science and engineering because of their exceptional characteristics, including high melting point, excellent thermal conductivity, remarkable chemical stability, superior corrosion and wear resistance, and notable biocompatibility. These properties make them highly suitable for coating various alloys, and as a result, they have been successfully applied in numerous applications. The aim of this research study is to delve into the corrosion behavior of spark plasma sintered NiTi substrates that were coated with TiN and TiCN employing physical vapor deposition (cathodic arc technology). In order to comprehensively analyze the corrosion response, potentiodynamic polarization and electrochemical impedance spectroscopy techniques were employed. To gain deeper insights into the impact of the coating, a meticulous comparison was conducted between the corrosion resistance of the uncoated specimen and that of the coated ones. The results showcased a significant enhancement in corrosion resistance for both coated samples when compared to the uncoated NiTi substrate. However, it was found that the TiN-coated specimen showed even higher corrosion resistance than the TiCN-coated counterpart. These findings highlight the superiority of TiN coatings in terms of corrosion resistance when applied on the NiTi substrate.","PeriodicalId":22113,"journal":{"name":"Synthesis and Sintering","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135721981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ablation behavior of ZrB2–SiC–Si composites with WC and MoSi2 additives coated through SPS on graphite 通过 SPS 在石墨上涂覆含有 WC 和 MoSi2 添加剂的 ZrB2-SiC-Si 复合材料的烧蚀行为

Synthesis and Sintering Pub Date : 2023-09-25 DOI: 10.53063/synsint.2023.33173

Mehran Jaberi Zamharir, Mohammad Zakeri, Zahra Jahangiri, Ahad Mohammadzadeh

引用次数: 0

Densification-crystallization behavior of biodegradable copper-doped modified 45S5 glasses 可生物降解的掺铜改性 45S5 玻璃的致密化-结晶行为

Synthesis and Sintering Pub Date : 2023-09-24 DOI: 10.53063/synsint.2023.33174

Ahad Saeidi, S. Banijamali, M. Heydari

{"title":"Densification-crystallization behavior of biodegradable copper-doped modified 45S5 glasses","authors":"Ahad Saeidi, S. Banijamali, M. Heydari","doi":"10.53063/synsint.2023.33174","DOIUrl":"https://doi.org/10.53063/synsint.2023.33174","url":null,"abstract":"In the current work, modified 45S5 glasses containing different amounts of copper oxide (1, 3, and 5 weight ratios) were prepared using melting procedure and characterized for their physical properties after sintering at various temperatures. Characterization of the copper doped glasses was performed using various analytical techniques, including X-ray diffractometry, differential thermal analysis, and scanning electron microscopy. To this purpose, a systematic study was conducted on densification-crystallization of the copper doped glasses and optimizing sintering temperature. Differential thermal analysis revealed weak exothermic peaks located above 800 °C, corresponding to the crystallization temperature (Tc) of the studied glasses. This analysis suggests that copper oxide has a limited effect on the thermal properties of the modified 45S5 glasses. Densification behavior of glass specimens was studied at temperatures ranging from 600 to 850 °C. The optimal densification temperature was found to be 650 °C, respectively. The results indicated that the presence of copper ions in the structure of studied glasses results in the formation of porous structures after sintering. It seems that copper ions generate oxygen gas during sintering and promote the formation of a cellular foam structures.","PeriodicalId":22113,"journal":{"name":"Synthesis and Sintering","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139336749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical assessment of ceramic micro heat exchangers working with nanofluids by Taguchi optimization approach 基于田口优化方法的纳米流体陶瓷微热交换器数值评估

Synthesis and Sintering Pub Date : 2023-09-22 DOI: 10.53063/synsint.2023.33169

Mohsen Naderi, Mohammad Vajdi, Farhad Sadegh Moghanlou, Hossein Nami

引用次数: 1

Microwave sintering of ZrB2-based ceramics: A review zrb2基陶瓷的微波烧结研究进展

Synthesis and Sintering Pub Date : 2023-08-06 DOI: 10.53063/synsint.2023.33129

Samira Savani, M. Alipour, Ankur Sharma, D. Benny Karunakar

引用次数: 0

Lithium ion conductivity, crystallization tendency, and microstructural evolution of LiZrxTi2-x(PO4)3 NASICON glass-ceramics (x = 0 - 0.4) lizzrxti2 -x(PO4)3 NASICON微晶玻璃(x = 0 - 0.4)的锂离子电导率、结晶倾向及微观结构演变

Synthesis and Sintering Pub Date : 2023-06-30 DOI: 10.53063/synsint.2023.32148

P. Goharian, A. Aghaei, B. Eftekhari Yekta, S. Banijamali

{"title":"Lithium ion conductivity, crystallization tendency, and microstructural evolution of LiZrxTi2-x(PO4)3 NASICON glass-ceramics (x = 0 - 0.4)","authors":"P. Goharian, A. Aghaei, B. Eftekhari Yekta, S. Banijamali","doi":"10.53063/synsint.2023.32148","DOIUrl":"https://doi.org/10.53063/synsint.2023.32148","url":null,"abstract":"In this research, NASICON type (LiZrXTi2-X(PO4)3) glass-ceramics were fabricated (x = 0.1, 0.2, 0.3, 0.4). Lithium-ion conductivity along with the crystallization tendency and microstructural features were examined in this regard. Parent glasses obtained through melt quenching were converted to the glass-ceramic specimens after one-step heat treatment procedure. The resultant glass-ceramics were deeply explored by means of different techniques including scanning electron microscope, differential thermal analysis, X-ray diffractometry, and ionic conductivity measurements. According to the obtained results, presence of Zr4+ ions in the glass network and its gradual increase caused the enhanced crystallization temperature as well as declined crystallinity and microstructure coarsening. In all studied glass-ceramics, LiT2(PO4)3 solid solution was the dominant crystalline phase and Zr4+ ions partly substituted in the structure of this crystalline phase. Moreover, presence of Zr4+ ions in the glass composition resulted in diminished lithium-ion conductivity of corresponded glass-ceramics at ambient temperature. Consequently, total conductivity of specimen with the highest level of ZrO2 (x = 0.4) was measured to be 0.78 x 10-5 Scm-1, being considerably less than ionic conductivity of the base (x = 0) glass-ceramic (3.04 x 10-5 Scm-1). It seems that less crystallinity of ZrO2 containing glass-ceramics decreases required connectivity between the lithium-ion free paths and is responsible for the diminished ionic conductivity of these specimens.","PeriodicalId":22113,"journal":{"name":"Synthesis and Sintering","volume":"38 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79906409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1