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X-ray tomography of additive-manufactured zirconia: Processing defects – Strength relations

التصوير المقطعي بالأشعة السينية للزركونيا المصنعة بالمواد المضافة: معالجة العيوب – علاقات القوة
Authors: Malika Saâdaoui; F. Khaldoun; Jérôme Adrien; Helen Reverón; Jérôme Chevalier;

X-ray tomography of additive-manufactured zirconia: Processing defects – Strength relations

Abstract

Se aplicó el análisis de tomografía computarizada de rayos X (XCT) para identificar y cuantificar defectos típicos en circonia 3Y-TZP densa procesada mediante la técnica de fabricación de cerámica basada en litografía (LCM). Las fortalezas derivadas de XCT se previeron a partir de los datos de XCT y se compararon con la medición experimental. Un buen acuerdo entre los datos de XCT, la medición de la resistencia a la flexión y el análisis fractográfico demuestra la idoneidad de la tomografía de rayos X tanto para la detección de defectos como para la estimación predictiva de la resistencia mecánica. También permite clasificar los diferentes defectos relacionados con LCM en términos de su criticidad frente a la resistencia mecánica.

L'analyse par tomodensitométrie à rayons X (XCT) a été appliquée pour identifier et quantifier les défauts typiques de la zircone 3Y-TZP dense traitée par la technique de fabrication de céramique basée sur la lithographie (LCM). Les forces dérivées de XCT ont été anticipées à partir des données XCT et comparées aux mesures expérimentales. Un bon accord entre les données XCT, la mesure de la résistance à la flexion et l'analyse fractographique démontre la pertinence de la tomographie aux rayons X pour la détection des défauts et l'estimation prédictive de la résistance mécanique. Il permet également de classer les différents défauts liés à la LCM en fonction de leur criticité par rapport à leur résistance mécanique.

X-ray Computed Tomography (XCT) analysis was applied to identify and quantify typical defects in dense 3Y-TZP zirconia processed by the Lithography-based Ceramic Manufacturing (LCM) technique. XCT derived strengths were anticipated from the XCT data and compared to experimental measurement. A good agreement between XCT data, bending strength measurement and fractographic analysis demonstrates the suitability of X-ray tomography for both defects detection and predictive mechanical strength estimation. It allows also to rank the different defects related to LCM in terms of their criticality versus mechanical resistance.

تم تطبيق تحليل التصوير المقطعي المحوسب بالأشعة السينية (XCT) لتحديد وقياس العيوب النموذجية في زركونيا 3Y - TZP الكثيفة التي تتم معالجتها بواسطة تقنية تصنيع السيراميك القائمة على الطباعة الحجرية (LCM). تم توقع نقاط القوة المستمدة من XCT من بيانات XCT ومقارنتها بالقياس التجريبي. يوضح الاتفاق الجيد بين بيانات XCT وقياس قوة الانحناء والتحليل الكسري مدى ملاءمة التصوير المقطعي بالأشعة السينية لكل من اكتشاف العيوب وتقدير القوة الميكانيكية التنبؤية. كما يسمح بتصنيف العيوب المختلفة المتعلقة بـ LCM من حيث أهميتها مقابل مقاومتها الميكانيكية.

Keywords

Composite material, Lithography, Bending, X-ray computed tomography, defects, strength, zirconia., Biomedical Engineering, Dual-Energy Computed Tomography, FOS: Mechanical engineering, FOS: Medical engineering, X-ray, Engineering, Optoelectronics, Tomography, defects, [CHIM.MATE] Chemical Sciences/Material chemistry, Synthesis and Properties of Cemented Carbides, Mechanical Engineering, Physics, Cubic zirconia, Comminution in Mineral Processing, DEM Modelling, Optics, Ceramic, Materials science, Physical Sciences, strength, additive manufacturing, zirconia

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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