3D-printing of ceramic filaments with ductile metallic cores

Cai, Qiaosong; Meille, Sylvain; Chevalier, Jérôme; Zhou, Shitong; Bouville, Florian; Elizarova, Iuliia S.; Saiz, Eduardo

doi:10.1016/j.matdes.2022.111463

Cited by 10 publications

(4 citation statements)

References 35 publications

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“…The loading speed is 0.1 mm/min. As a result, K IC of 3D-printed Al 2 O 3 is 2.77 MPa m 1/2 (Figure S9 of the Supporting Information), which falls within the typical range of the fracture toughness observed for fine-grained Al 2 O 3 ceramics (from 2 to 3 MPa m 1/2 ) …”

Section: Resultssupporting

confidence: 70%

“…As a result, K IC of 3Dprinted Al 2 O 3 is 2.77 MPa m 1/2 (Figure S9 of the Supporting Information), which falls within the typical range of the fracture toughness observed for fine-grained Al 2 O 3 ceramics (from 2 to 3 MPa m 1/2 ). 36 Additionally, to understand the influence of the exposure time under UV light on mechanical properties, bars were prepared with various exposure times ranging from 25 to 45 s. Interestingly, the bending strength after sintering increased dramatically from 150 to 310 MPa as the exposure time changed from 25 to 40 s (Figure S10 of the Supporting Information). This increase can be attributed to the enhanced bonding of adjacent layers as a result of the longer exposure time.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Three-Dimensional Printing of Cuttlebone-Inspired Porous Ceramic Materials

Mao,

Zhou,

Hong

et al. 2024

ACS Appl. Mater. Interfaces

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Lightweight and strong ceramic materials are attractive for tissue engineering, aerospace, armor systems, and many high-temperature applications. Cuttlebone, primarily composed of bioceramics, features a unique S-shaped wall structure that contributes significantly to its remarkable mechanical properties. Here, we explore the hierarchical structure and components of the cuttlebone and reveal the high ceramic content in S-shaped walls. Inspired by the design of the cuttlebone, we developed a high ceramic loading slurry for three-dimensional printing cuttlebone-like structures. As shown in the compression test, the fabricated bioinspired ceramics exhibit excellent mechanical properties and can withstand 1.07 million times their own weight, outperforming traditional ceramic foams. The specific strength and modulus are 59.5 and 785.6 MPa/(g cm −3 ), 9 and 36 times that of the natural cuttlebone. The failure mechanisms are also systematically studied on the basis of tuning the structural parameters. These findings provide effective solutions and inspiration in fabricating high-performance ceramic structural materials.

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Section: Resultssupporting

confidence: 70%

Section: ■ Results and Discussionmentioning

confidence: 99%

Three-Dimensional Printing of Cuttlebone-Inspired Porous Ceramic Materials

Mao,

Zhou,

Hong

et al. 2024

ACS Appl. Mater. Interfaces

Self Cite

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“…Moreover, DIW opens up unlimited opportunities for processing multi-materials by using multiple printheads or combined material printheads. [16] According to different hardening principles, various ceramic slurries/pastes have been developed for DIW. [17][18][19] One type is solvent-based and relies on solvent evaporation, for which various aqueous/non-aqueous systems have been developed.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, DIW opens up unlimited opportunities for processing multi‐materials by using multiple printheads or combined material printheads. [ 16 ]…”

Section: Introductionmentioning

confidence: 99%

UV‐Curing Assisted Direct Ink Writing of Dense, Crack‐Free, and High‐Performance Zirconia‐Based Composites With Aligned Alumina Platelets

Li,

Huang,

Willems

et al. 2023

Advanced Materials

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Additive manufacturing (AM) of high‐performance structural ceramic components with comparative strength and toughness as conventionally manufactured ceramics remains challenging. Here, a UV‐curing approach is integrated in direct ink writing (DIW), taking advantage from DIW to enable an easy use of high solid‐loading pastes and multi‐layered materials with compositional changes; while, avoiding drying problems. UV‐curable opaque zirconia‐based slurries with a solid loading of 51 vol% are developed to fabricate dense and crack‐free alumina‐toughened zirconia (ATZ) containing 3 wt% alumina platelets. Importantly, a non‐reactive diluent is added to relieve polymerization‐induced internal stresses, avoid subsequent warping and cracking, and facilitate the de‐binding. For the first time, UV‐curing assisted DIW‐printed ceramic after sintering reveals even better mechanical properties than that processed by a conventional pressing. This is attributed to the aligned alumina platelets, enhancing crack deflection and improving the fracture toughness from 6.8 ± 0.3 MPa m0.5 (compacted) to 7.4 ± 0.3 MPa m0.5 (DIW). The four‐point bending strength of the DIW ATZ (1009 ± 93 MPa) is also higher than that of the conventionally manufactured equivalent (861 ± 68 MPa). Besides homogeneous ceramic, laminate structures are demonstrated. This work provides a valuable hybrid approach to additively manufacture tough and strong ceramic components.

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