Transparent Ceramic Materials

Kong, Ling Bing; Huang, Yizhong; Que, Wenxiu; Li, Sean; Zhang, Jian; Dong, Zhili; Tang, Dewei

doi:10.1007/978-3-319-18956-7_2

Cited by 18 publications

(16 citation statements)

References 282 publications

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“…Oxygen vacancies reduce light transmission as a result of releasing electrons in the solid. 2 In this research, the atmosphere of sintering was vacuum, and the samples looked gray. To improve optical properties, S4 was annealed.…”

Section: Evaluation Of the Prepared Alon Powder For Spsmentioning

confidence: 98%

“…Microwave sintering and spark plasma sintering (SPS) have been recently used. 2 Ceramics can be fabricated via the SPS method at lower temperatures and shorter soaking times of sintering compared to conventional methods. The high heating rate of sintering causes achieving fine-grained products.…”

Section: Kamali Et Almentioning

confidence: 99%

“…3 The densification of ceramics is ascribed as the matter flux from the grain boundaries to the pores. The densification rate is related to grain size (G) when the sintering is controlled by diffusion mechanisms, by the following equation 2 :…”

Section: Density Evaluationmentioning

confidence: 99%

“…These explanations indicate that enough sintering time, not short and not prolonged, is a very important factor for the densification of such ceramics. 2…”

Section: Density Evaluationmentioning

confidence: 99%

“…

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mentioning

confidence: 99%

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Highly transparent AlON fabricated via SPS synthesized by Al₂O₃/C core–shell starting powder and CRN method

Kamali

Mohebi

Taherian

et al. 2021

Int J Applied Ceramic Tech

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Gamma aluminum oxynitride (γ-AlON) with a cubic spinel structure is a stable solid solution of Al 2 O 3 -AlN system, which has been attracted much attention in recent decades. 1,2 Transparency of AlON fully dense specimen is in the wavelength range of about 0.2-5 μm. 3 AlON is appropriate for phosphor-converted white LED, light-emitting devices, load-bearing orthopedic, and ceramic semiconductors because of its excellent optical properties besides high hardness and strength. AlON can be used instead of sapphire with a lower price, for applications that excellent mechanical and optical properties are needed. [4][5][6] Carbothermal reduction and nitridation (CRN) method is the most applied technique for AlON fabrication comparing to the other methods. The first report of using the CRN method was published by Yamaguchi et al. in 1959. 6,7 This method needs simple equipment, cheaper raw materials compared to the solid phase reaction, and the final product of this technique has a uniform chemical composition in terms of stoichiometry. 6,8 Remained carbon content in the final product and various effective factors, which can hardly be controlled, are disadvantages of this method. When the CRN method uses as a single-step process, before producing enough amounts of AlN beside α-Al 2 O 3 , a large part of the AlO 2 gaseous species exists because of the high temperature (more than 1800°C) of synthesis. This results in an excessive reduction of Al 2 O 3 phase amount, and consequently, the AlN phase presents in the final product. 9,10 The main reaction of twostep CRN technique corresponds to reaction (1):This main reaction consists of two sub-reactions, which in the first step, γ-Al 2 O 3 reacts with carbon and nitrogen; accordingly, AlN is produced. In the second step, α-Al 2 O 3 reacts with AlN and AlON is fabricated as the final product. 6,11 (1) 64 + x 3 Al 2 O 3 + 3xC + xN 2 → 2Al 64+x 3 O 32−x N x + 3xCO

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Section: Evaluation Of the Prepared Alon Powder For Spsmentioning

confidence: 98%

Section: Kamali Et Almentioning

confidence: 99%

Section: Density Evaluationmentioning

confidence: 99%

“…These explanations indicate that enough sintering time, not short and not prolonged, is a very important factor for the densification of such ceramics. 2…”

Section: Density Evaluationmentioning

confidence: 99%

“…

…”

mentioning

confidence: 99%

See 3 more Smart Citations

Highly transparent AlON fabricated via SPS synthesized by Al₂O₃/C core–shell starting powder and CRN method

Kamali

Mohebi

Taherian

et al. 2021

Int J Applied Ceramic Tech

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Functional Tantalum‐based Oxides: From the Structure to the Applications

Złotnik

Tkach

Vilarinho

2016

Advanced Ceramic Materials

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Elasto‐Optic Effect of Lanthanum‐Modified Lead Zirconate–Lead Titanate Transparent Ceramics: Application in Optical‐Stress Sensors

Ming

Liu

Chen

et al. 2022

Advanced Optical Materials

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Elasto‐optic materials have extensive applications, particularly in sensors, filters, and acousto‐optic modulators in optical–mechanical‐coupled devices. Ferroelectric phenomenological theoretical analyses have shown that materials with large ferroelastic responses also have high elasto‐optic effects, and morphotropic phase‐boundary (MPB) ferroelectrics have substantial ferroelastic coupling; thus, a large elasto‐optic effect can be obtained. In this study, guided by phenomenological theories, lanthanum‐modified lead zirconate–lead titanate (PLZT) transparent ceramics close to MPB are successfully prepared using the hot‐pressing method. The elasto‐optic properties of the PLZT transparent ceramics are investigated using the half‐wave stress and the Sénarmont compensator methods. The results indicate that the PLZT ceramics have high transmittance (higher than 70% in near‐infrared) and a large elasto‐optic effect with a stress‐optic coefficient of 10.41 × 10−12 m2 N−1 (approximately three times that of SiO2). Based on these properties, intensity‐ and interference‐type optical‐stress sensors are designed and realized; better anti‐interference ability can be achieved using the interference‐type sensor. These results indicate that PLZT transparent ceramics are promising candidates for optical–mechanical‐coupled device applications. This study also substantiates that transparent ceramics are novel elasto‐optic materials, which uncover new avenues for the development of elasto‐optic materials with excellent properties.

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Transparent Ceramic Materials

Cited by 18 publications

References 282 publications

Highly transparent AlON fabricated via SPS synthesized by Al₂O₃/C core–shell starting powder and CRN method

Highly transparent AlON fabricated via SPS synthesized by Al₂O₃/C core–shell starting powder and CRN method

Functional Tantalum‐based Oxides: From the Structure to the Applications

Elasto‐Optic Effect of Lanthanum‐Modified Lead Zirconate–Lead Titanate Transparent Ceramics: Application in Optical‐Stress Sensors

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Transparent Ceramic Materials

Cited by 18 publications

References 282 publications

Highly transparent AlON fabricated via SPS synthesized by Al2O3/C core–shell starting powder and CRN method

Highly transparent AlON fabricated via SPS synthesized by Al2O3/C core–shell starting powder and CRN method

Functional Tantalum‐based Oxides: From the Structure to the Applications

Elasto‐Optic Effect of Lanthanum‐Modified Lead Zirconate–Lead Titanate Transparent Ceramics: Application in Optical‐Stress Sensors

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Highly transparent AlON fabricated via SPS synthesized by Al₂O₃/C core–shell starting powder and CRN method

Highly transparent AlON fabricated via SPS synthesized by Al₂O₃/C core–shell starting powder and CRN method