Improving the accuracy of stereolithography 3D printed Al2O3 microcomponents by adding photoabsorber: Fundamentals and experiments

Article Engineering, Environmental

3D-printed bioinspired Al2O3/polyurea dual-phase architecture with high robustness, energy absorption, and cyclic life

Xueqin Zhang et al.

Summary: The bioinspired cellular ceramic structure/polyurea (CCS/polyurea) dual-phase architecture can enhance the load-bearing capacity, energy absorption ability, and cyclic life of ceramic components.

CHEMICAL ENGINEERING JOURNAL (2023)

添加到收藏夹

Article Mechanics

Mechanical properties of additively manufactured Al2O3 ceramic plate-lattice structures: Experiments & Simulations

Bin Zhang et al.

Summary: In this study, Al2O3 ceramic truncated octahedron (TO) plate-lattice structures with different relative densities were additively manufactured to investigate their quasi-static and dynamic compressive behaviors. The relative density was found to have a significant impact on the mechanical properties of TO plate-lattice structures. Furthermore, comparative studies showed that TO plate-lattice structures with plates added only in the loading direction (TOH) exhibited the best performance in terms of Young's modulus and compressive strength, followed by TO plate-lattice structures with plates added in all directions (TOA). Additionally, the mechanical properties of TO plate-lattice structures were found to be improved under dynamic conditions compared to static conditions.

COMPOSITE STRUCTURES (2023)

添加到收藏夹

Review Chemistry, Multidisciplinary

3D-Printed Micro/Nano-Scaled Mechanical Metamaterials: Fundamentals, Technologies, Progress, Applications, and Challenges

Ruyue Su et al.

Summary: This article introduces the superior properties and extensive attention that micro/nano-scaled mechanical metamaterials have attracted in various fields. It also discusses the manufacturing methods, material types, application areas, challenges, and future development of micro/nano-scaled mechanical metamaterials.

SMALL (2023)

添加到收藏夹

Article Multidisciplinary Sciences

Long-lifetime water-washable ceramic catalyst filter for air purification

Hyuk Jae Kwon et al.

Summary: A new type of ceramic catalyst filter is introduced which can efficiently remove PM and VOCs as primary air pollutants and can be regenerated and used for long periods through simple water washing. It has the ability to remove PM and VOCs effectively and can be used for up to 20 years with simple water washing for regeneration.

NATURE COMMUNICATIONS (2023)

添加到收藏夹

Article Materials Science, Ceramics

Preparation of porous SnO2-based ceramics with lattice structure by DLP

Guoan Qi et al.

Summary: Porous SnO2-based ceramics with lattice structures were successfully prepared by digital light processing (DLP) 3D printing technology. The molding accuracy and densification of the ceramics were optimized through rheological experiments and thermogravimetric-differential scanning calorimetry (TG-DSC) analysis. The addition of ZnO as a sintering additive further enhanced the densification of SnO2 ceramics. The compressive strength of the porous ceramics was significantly influenced by the pore structure.

CERAMICS INTERNATIONAL (2022)

添加到收藏夹

Article Materials Science, Biomaterials

Fabrication and biological evaluation of 3D-printed calcium phosphate ceramic scaffolds with distinct macroporous geometries through digital light processing technology

Jing Wang et al.

Summary: The DLP-based 3D printing technique shows promise in fabricating high-precision scaffolds. By modifying CaP powders and designing different geometries, the researchers were able to create CaP ceramics with different macroporous structures. The study found that the macropore geometry is crucial in influencing the osteoinductivity of the scaffolds, with spherical concave macropores facilitating bone formation.

REGENERATIVE BIOMATERIALS (2022)

添加到收藏夹

Article Energy & Fuels

Additive manufacturing and testing of a ceramic heat exchanger for high-temperature and high-pressure applications for concentrating solar power

Wenchao Du et al.

Summary: This study developed ceramic heat exchangers with excellent corrosion and oxidation resistances for concentrated solar power plants. Lab-scale prototype heat exchangers were fabricated using additive manufacturing techniques and validated through experimental testing and simulation analysis.

SOLAR ENERGY (2022)

添加到收藏夹

Article Materials Science, Multidisciplinary

High-Precision 3D Printing of High-Strength Polymer-Derived Ceramics: Impact of Precursor's Molecular Structure

Hui Chen et al.

Summary: Additive manufacturing (3D printing) provides new opportunities for creating complex structures. This study developed a new hybrid preceramic formulation for high-resolution 3D printing of ceramics and proposed a simple and effective method for formulating 3D printable preceramic polymers through molecular design.

ADVANCED ENGINEERING MATERIALS (2022)

添加到收藏夹

Article Chemistry, Physical

A Comprehensive Study on High-Temperature Oxidation Behavior of Ceramic Molds for Hot Embossing

Youcheng Zhu et al.

Summary: This study investigates the oxidation behaviors of various ceramics in high-temperature hot embossing and measures their mass changes, surface morphology, roughness, and hardness. The results show that different ceramics have different suitable embossing temperature ranges.

MATERIALS (2022)

添加到收藏夹

Article Materials Science, Ceramics

Additive manufacturing, quasi-static and dynamic compressive behaviours of ceramic lattice structures

Xueqin Zhang et al.

Summary: In this study, ceramic lattice structures (CLSs) were designed and additively manufactured to investigate their quasi-static and dynamic compressive behaviors. It was found that the relative density and inclination angle significantly influenced the mechanical properties of the CLSs. Mathematical relationships were established between the quasi-static compressive properties and the structural parameters, and these relationships were consistent with established models. The study also revealed a change in the failure mode of the CLSs with increasing stiffness, and demonstrated their suitability for extreme environments.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY (2022)

添加到收藏夹

Article Engineering, Chemical

Double-layer ceramic-carbonate hollow fiber membrane with superior mechanical strength for CO2 separation

Tianjia Chen et al.

Summary: This study reports a new structure of ceramic-carbonate dual-phase hollow fiber membrane with high CO2 permeance and superior mechanical strength for CO2 separation. The unique double-layer structure of the membrane enables a significant improvement in mechanical strength, resulting in a higher CO2 flux.

JOURNAL OF MEMBRANE SCIENCE (2022)

添加到收藏夹

Article Nanoscience & Nanotechnology

High-Quality-Factor AlON Transparent Ceramics for 5 GHz Wi-Fi Aesthetically Decorative Antennas

Chao Du et al.

Summary: The transparent ceramic material designed in this paper demonstrates excellent performance in a 5 GHz Wi-Fi antenna, with high light transmittance and RF properties. Through cold isostatic pressing, the AlON transparent ceramic achieves optimal dielectric constant, quality factor, and temperature coefficient.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

Article Materials Science, Ceramics

The effect of light scattering in stereolithography ceramic manufacturing

Chuchu Qian et al.

Summary: This study simulated light scattering caused by ceramic particles during stereolithography ceramic manufacturing, confirming the effects of particle distribution, input energy, and relative refractive index. The simulation also revealed differences in scattering edge and surface roughness, providing valuable insights for controlling the light-cured 3D printing process for ceramics.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY (2021)

添加到收藏夹

Article Biochemistry & Molecular Biology

A Tuneable, Photocurable, Poly(Caprolactone)-Based Resin for Tissue Engineering-Synthesis, Characterisation and Use in Stereolithography

Jonathan Field et al.

Summary: The study shows that PCLMA prepared by photopolymerization has a range of mechanical properties and degradation rates that can be adjusted, making it suitable for producing tissue engineering scaffolds. The resin's additive manufacturing capabilities were demonstrated through micro-stereolithography, using beta-carotene as a photoabsorber to enable the production of complex geometries.

MOLECULES (2021)

添加到收藏夹

Article Engineering, Electrical & Electronic

Polymer-derived ceramic thin-film temperature sensor

Zaifu Cui et al.

Summary: This work successfully addresses the monitoring challenges of machines in harsh environments by fabricating an ultra-thin-film temperature sensor, providing a new solution for aerospace applications.

SENSORS AND ACTUATORS A-PHYSICAL (2021)

添加到收藏夹

Review Materials Science, Ceramics

High temperature ceramic radomes (HTCR)-A review

Abanti Nag et al.

Summary: Radome, an enclosure for radar antenna in military aircraft and missiles, is classified based on function type and operation speed. While composite laminates are suitable for subsonic applications, ceramics are the only option for high-speed military aerospace applications. Silicon nitride based radome materials with controlled porosity are proposed as futuristic high temperature materials for supersonic applications.

CERAMICS INTERNATIONAL (2021)

添加到收藏夹

Review Materials Science, Multidisciplinary

Photopolymerization and Photostructuring of Molecularly Imprinted Polymers

Ernesto Paruli et al.

Summary: Molecularly imprinted polymers (MIPs) have become highly attractive materials for biomimetic molecular recognition due to their excellent affinity and specificity, as well as their robustness and competitive costs. Control over size, morphology, and physical form of MIPs has led to defined micro- and nanostructures, crucial for modern applications. Light as a stimulus for structuring MIPs has emerged as a powerful tool, offering new possibilities for their development and application.

ACS APPLIED POLYMER MATERIALS (2021)

添加到收藏夹

Article Materials Science, Ceramics

Relationship between the adhesion properties of UV-curable alumina suspensions and the functionalities and structures of UV-curable acrylate monomers for DLP-based ceramic stereolithography

Xiaohong Xu et al.

Summary: The study found that increasing the proportion of monofunctional monomers can enhance the adhesion ability of UV-curable alumina suspensions, but may reduce curing performance. Additionally, large-volume branched chain structures in monofunctional monomers and ethoxyl groups in polyfunctional monomers effectively reduce volume contraction, improving the adhesion performance of UV-curable alumina suspensions and facilitating the conversion of double bonds to ensure strong adhesion to the substrate.

CERAMICS INTERNATIONAL (2021)

添加到收藏夹

Article Engineering, Environmental

Novel silica sand hollow fibre ceramic membrane for oily wastewater treatment

Saber Abdulhamid Alftessi et al.

Summary: Hollow fibre ceramic membranes are well-known for their superior characteristics, but their high cost has hindered commercialization. A low-cost silica sand-based hollow fibre ceramic membrane was successfully fabricated, showing promising mechanical strength and morphology under optimal fabrication parameters.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2021)

添加到收藏夹

Article Materials Science, Ceramics