Effect of Particle Size and Sintering Procedure on Microstructure, Dielectric, Ferroelectric and Mechanical Properties of SrBi4Ti4O15

Rambabu, A.; Raju, K. C. James

doi:10.1080/0371750x.2011.10600160

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…In this heating process, no thermal conductivity mechanism is involved, with the microwave energy transferred directly through the electromagnetic field . Therefore, microwave‐based heat treatments show potential as high‐quality alternatives to CS processes …”

Section: Introductionmentioning

confidence: 99%

Effects of Initial Powder Size on the Densification of Barium Titanate Ceramics Prepared by Microwave‐Assisted Sintering

et al. 2015

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The effects of initial powder size on microwave-assisted sintering (MWS) were investigated. BaTiO 3 powders with an average particle size of 50, 100, and 500 nm were prepared and sintered with MWS and conventional heating-based sintering (CS). Samples of the 50 -and 100-nm-sized BaTiO 3 powders were mechanically milled to study the effects of powder crystallinity on microwave absorption during the MWS process. The MWS of the 50-nm-sized BaTiO 3 powder resulted in a relative mass density of more than 90% when sintered at 1050°C, whereas the same density was achieved at 1200°C with CS. This difference between the optimal sintering temperatures, which is caused by the absorption of microwaves, was not observed when the 500-nm-sized BaTiO 3 powder was used. The sinterability of the BaTiO 3 ceramics prepared through the MWS of mechanically milled, 50-nm-sized powders decreased with increasing milling time. However, the sinterability was much higher than that of the BaTiO 3 ceramics prepared through the MWS of the 100-and 500-nm-sized unmilled powders. In conclusion, microwave absorption has significant effects on the sintering behavior of~50-nm-sized powders, but is negligible for 500-nm-sized powders.The BaTiO 3 ceramics were produced at temperatures ranging from 900°C to 1350°C with CS or MWS for 10 min. Three different soaking time zones (0-10, 10-20, and 20-30 min) were applied to calculate the variation in the activation energy of densification as a function of the soaking time. When raising the temperature, the MWS and CS heating rates were 50°C/min and 5°C/min, respectively, and after soaking, the samples were cooled naturally. CS was performed in an electric furnace operating at 220 V H. Chan-contributing editor Manuscript No. 35499.

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Section: Introductionmentioning

confidence: 99%

Effects of Initial Powder Size on the Densification of Barium Titanate Ceramics Prepared by Microwave‐Assisted Sintering

et al. 2015

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A current review on electron beam assisted additive manufacturing technology: recent trends and advances in materials design

Sonkamble¹,

Phafat²

2023

Discov Mechanical Engineering

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This paper primarily discusses the current capabilities and future trends of Electron Beam Technology (EBT), which is a metal additive manufacturing (AM) process. EBT, comparatively a young technology, is used to produce whole metallic components directly from the electronic data of the desired geometry. Its applications have extended in various industries with broad attention to aerospace and biomedical fields. This paper discusses the diverse prospects of EBT mainly for existing and future materials design. Powder manufacturing and materials characterization techniques are noted down with a focus on powder metallurgical requirements. A vital parameter development platform is also discussed. Finally, the current challenges and the remedies to overcome the challenges with the future outlook are discussed and presented. Graphical Abstract

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Effect of oxygen assisted sintering on piezoelectric properties of SrBi4Ti4O15 ceramics prepared via high energy mechanochemical processing

James

2015

Ceramics International

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Effect of Particle Size and Sintering Procedure on Microstructure, Dielectric, Ferroelectric and Mechanical Properties of SrBi₄Ti₄O₁₅

Cited by 5 publications

References 14 publications

Effects of Initial Powder Size on the Densification of Barium Titanate Ceramics Prepared by Microwave‐Assisted Sintering

Effects of Initial Powder Size on the Densification of Barium Titanate Ceramics Prepared by Microwave‐Assisted Sintering

A current review on electron beam assisted additive manufacturing technology: recent trends and advances in materials design

Effect of oxygen assisted sintering on piezoelectric properties of SrBi4Ti4O15 ceramics prepared via high energy mechanochemical processing

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