Author
Huijun Yu
Bio: Huijun Yu is an academic researcher from Shandong University. The author has contributed to research in topics: Coating & Microstructure. The author has an hindex of 19, co-authored 60 publications receiving 1666 citations.
Topics: Coating, Microstructure, Corrosion, Titanium alloy, Alloy
Papers
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TL;DR: In this article, the development of laser cladding for functional coatings with high wear resistance, good corrosion and oxidation resistance, and better medical biocompatibility is reviewed, and the existing problems and the corresponding solutions are discussed.
417 citations
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TL;DR: In this paper, the influence of the electrolyte, process parameters, pretreatment and post-treatment on the coating characteristics (surface micrograph, adhesion strength and biological compatibility etc.) is detailed.
243 citations
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TL;DR: In this paper, the laser cladding process and the effects of processing parameters, including laser power, scanning velocity, beam focal position, feeding ways of the material etc., are discussed in detail.
185 citations
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TL;DR: In this article, the effects of laser power and scanning velocity on the microstructure evolution and wear property of the laser cladding coatings were studied, and the results indicated that the coatings are mainly comprised of γ-Co/Ni, TiC, TiB 2, TiB, NiTi, CoTi 2, and Cr 7 C 3.
125 citations
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TL;DR: In this article, the latest studies on the biological properties of CaP biomaterials, including hydroxyapatite (HA), tricalcium phosphate (TCP), and biphasic calcium phosphate (BCP), have been summarized.
Abstract: Bone defects are a common disease threatening the health of many people. Calcium phosphate (CaP) is an ideal bone substitutive material that is widely used for bone repair due to its excellent biological properties including osteoinductivity, osteoconductivity and biodegradability. For this reason, investigation of these properties and the effects of various influencing factors is vital for modulating calcium phosphate during the design process to maximally satisfy clinical requirements. In this study, the latest studies on the biological properties of CaP biomaterials, including hydroxyapatite (HA), tricalcium phosphate (TCP), and biphasic calcium phosphate (BCP), have been summarized. Moreover, recent advances on how these properties are altered by different factors are reviewed. Considering the limited mechanical strength of CaP materials, this study also reviews CaP composites with different materials as improvement measures. Finally, perspectives regarding future developments of CaP materials are also provided.
114 citations
Cited by
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578 citations
01 Apr 2010
TL;DR: Polycaprolactone (PCL) was used in the biomaterials field and a number of drug-delivery devices for up to 3-4 years as discussed by the authors.
Abstract: During the resorbable-polymer-boom of the 1970s and 1980s, polycaprolactone (PCL) was used in the biomaterials field and a number of drug-delivery devices. Its popularity was soon superseded by faster resorbable polymers which had fewer perceived disadvantages associated with long term degradation (up to 3-4 years) and intracellular resorption pathways; consequently, PCL was almost forgotten for most of two decades. Recently, a resurgence of interest has propelled PCL back into the biomaterials-arena. The superior rheological and viscoelastic properties over many of its aliphatic polyester counterparts renders PCL easy to manufacture and manipulate into a large range of implants and devices. Coupled with relatively inexpensive production routes and FDA approval, this provides a promising platform for the production of longer-term degradable implants which may be manipulated physically, chemically and biologically to possess tailorable degradation kinetics to suit a specific anatomical site. This review will discuss the application of PCL as a biomaterial over the last two decades focusing on the advantages which have propagated its return into the spotlight with a particular focus on medical devices, drug delivery and tissue engineering.
480 citations
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TL;DR: In this article, a review of recent efforts and advances in additive manufacturing (AM) on different types of new materials is presented and reviewed, focusing on the material design of cladding layers, the choice of feedstock materials, the metallurgical behavior and synthesis principle during the AM process, and the resulted microstructures and properties, as well as the relationship between these factors.
439 citations
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TL;DR: In this article, the development of laser cladding for functional coatings with high wear resistance, good corrosion and oxidation resistance, and better medical biocompatibility is reviewed, and the existing problems and the corresponding solutions are discussed.
417 citations
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TL;DR: In this article, the role of alloy constitution is explored in three classical alloy design regimes: an alloy containing no grain refiners (Ti 6Al 4V); an alloy only containing grain refining solutes (Ti 3Al 8V 6Cr 4Mo 4Zr); and an alloy including both grain refining and nucleant particles (Ti3Al 8v 6Cr4Mo 4zr+La2O3).
371 citations