Anti-oxidation of emissing agents in TaSi2–MoSi2-borosilicate glass high emissivity coating

Tao, Xin; Liang, Zilong; Jiancun, LI; Zhang, Jingfang; Guo, Xinya; Wang, Mingchao

doi:10.1016/j.ceramint.2022.08.310

Cited by 7 publications

(3 citation statements)

References 39 publications

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“…The diverse applications of processed glass products that range from household glass to the touchscreen panels of mobile electronic devices, construction materials, industrial strengthened glass, and automotive glass, have necessitated the development of various coating properties to serve different purposes [1][2][3][4][5][6]. These coatings vary in thickness and exhibit distinct functionalities, such as antioxidation, corrosion resistance, high-temperature tolerance, and ease of cleaning [7][8][9]. As a material, glass spans a multitude of compositions, resulting in hundreds of distinct glass types worldwide [10,11].…”

Section: Introductionmentioning

confidence: 99%

Transparent Glass Film Detection by Hyperspectral Imaging

Lue,

Karmakar,

Mukundan

et al. 2023

Preprint

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In this investigation, we present an innovative approach for the identification and quantification of transparent glass films through hyperspectral imaging (HSI). The primary objective of this research entails the development of a conversion algorithm for rendering spectral information from captured imagery, specifically within the visible light and near-infrared (NIR) regions. When applied to industrial camera-generated images, this algorithm facilitates the acquisition of pertinent spectral data. The subsequent phase of this inquiry involves the application of principal component analysis to the acquired HSI images that stem from distinct processed glass samples. This analytical process normalizes the intensity of light wavelengths that are inherent in the HSI images. We derive the simulated spectral profiles by applying the Beer–Lambert law in conjunction with the generalized inverse matrix method to the normalized HSI images. These profiles are subsequently aligned with spectroscopic data collected through microscopic imaging, culminating in the visualization of characteristic dispersion patterns. The thickness of the glass processing film is successfully rendered in a visually discernible manner by employing innovative image coloring techniques. In accordance with the empirical findings, variations in the thickness of the glass coating within the NIR-HSI domain engender notable alterations in infrared transmittance across distinct wavelengths that encompass the NIR spectrum. This phenomenon provides the basis for film thickness analysis. Remarkably, the average root-mean-square error within the NIR region only amounts to 0.02, underscoring the precision of our approach. Prospective avenues of inquiry that stem from this research include the integration of the developed methodology into the conception of a real-time, large-area automated optical inspection system.

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Section: Introductionmentioning

confidence: 99%

Transparent Glass Film Detection by Hyperspectral Imaging

Lue,

Karmakar,

Mukundan

et al. 2023

Preprint

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“…Its high-temperature oxidation resistance needs to be enhanced to meet high-temperature conditions. To solve the problem of poor oxidation resistance of tantalum and its alloys in high-temperature environments, high-temperature oxidation-resistant coatings are often applied to extend the service life of the material [11][12][13]. Current antioxidant coatings for tantalum and its alloys include oxide coatings, noble metal coatings, aluminide coatings, and silicide coatings [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Current antioxidant coatings for tantalum and its alloys include oxide coatings, noble metal coatings, aluminide coatings, and silicide coatings [14][15][16][17][18]. Among them, researchers at home and abroad have extensively studied silicide coatings due to their broad scope of use and easy modification and optimization properties [11,[19][20][21][22]. A series of significant research results has been achieved, forming a series of more mature silicide coating systems.…”

Section: Introductionmentioning

confidence: 99%

Orthogonal Experimental Optimization of Preparation and Microstructural Properties of a Diffusion Barrier for Tantalum-Based Silicide Coatings

Xiao

Zhou

et al. 2023

Materials

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To solve the problem of silicide coatings on tantalum substrates failing due to elemental diffusion under high-temperature oxidation environments and to find diffusion barrier materials with excellent effects of impeding Si elemental spreading, TaB2 and TaC coatings were prepared on tantalum substrates by the encapsulation and infiltration methods, respectively. Through orthogonal experimental analysis of the raw material powder ratio and pack cementation temperature, the best experimental parameters for the preparation of TaB2 coatings were selected: powder ratio (NaF:B:Al2O3 = 2.5:1:96.5 (wt.%)) and pack cementation temperature (1050 °C). After diffusion treatment at 1200 °C for 2 h, the thickness change rate of the Si diffusion layer prepared using this process was 30.48%, which is lower than that of non-diffusion coating (36.39%). In addition, the physical and tissue morphological changes of TaC and TaB2 coatings after siliconizing treatment and thermal diffusion treatment were compared. The results prove that TaB2 is a more suitable candidate material for the diffusion barrier layer of silicide coatings on tantalum substrates.

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