Rainer Gadow
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View article: Elimination of delamination cracks in ceramics manufactured using LCD stereolithography
Elimination of delamination cracks in ceramics manufactured using LCD stereolithography Open
LCD stereolithography of ceramics allows the creation of ceramic parts with unprecedented resolution for various applications from medical tooling to archeological restoration. However, the manufacturing of a delamination cracks-free sinte…
View article: Manufacturability and geometrical limitations of β-tricalcium phosphate-filled resins using LCD stereolithography
Manufacturability and geometrical limitations of β-tricalcium phosphate-filled resins using LCD stereolithography Open
Additive manufacturing of bio-ceramics using LCD stereolithography allows the creation of ceramic parts with unprecedented resolution for various medical applications. However, the potential of this technology can only be fully harnessed i…
View article: Synthesis of Submicron, Nanostructured Spherical Powders of Y3Al5O12-Phases by the Method by Ultrasonic Spray Pyrolysis and Investigation of Their Structure and Properties
Synthesis of Submicron, Nanostructured Spherical Powders of Y3Al5O12-Phases by the Method by Ultrasonic Spray Pyrolysis and Investigation of Their Structure and Properties Open
The results of laboratory studies of the submicron Y3Al5O12 (YAG) phase powders synthesized by ultrasonic spray pyrolysis are presented. A structural-phase analysis of aerosol powders was carried out and an assessment of the tendency of th…
View article: Deposition of 3YSZ-TiC PVD Coatings with High-Power Impulse Magnetron Sputtering (HiPIMS)
Deposition of 3YSZ-TiC PVD Coatings with High-Power Impulse Magnetron Sputtering (HiPIMS) Open
Optimized coating adhesion and strength are the advantages of high-power impulse magnetron sputtering (HiPIMS) as an innovative physical vapor deposition (PVD) process. When depositing electrically non-conductive oxide ceramics as coatings…
View article: Additive Manufacturing of β-Tricalcium Phosphate Components via Fused Deposition of Ceramics (FDC)
Additive Manufacturing of β-Tricalcium Phosphate Components via Fused Deposition of Ceramics (FDC) Open
Bone defects introduced by accidents or diseases are very painful for the patient and their treatment leads to high expenses for the healthcare systems. When a bone defect reaches a critical size, the body is not able to restore this defec…
View article: Manufacturing parameter analysis for alumina coating on steel substrate by automated image processing of isolated splats samples
Manufacturing parameter analysis for alumina coating on steel substrate by automated image processing of isolated splats samples Open
Thermal spray technology, which involves the Atmospheric Plasma Spraying (APS), encompasses a category of coating processes that supply surface properties to protect or improve the performance of a substrate or component. The coating produ…
View article: Manufacturing of Continuous Carbon Fiber Reinforced Aluminum by Spark Plasma Sintering
Manufacturing of Continuous Carbon Fiber Reinforced Aluminum by Spark Plasma Sintering Open
In the field of metal matrix composites (MMC), spark plasma sintering (SPS) technique has been used so far for the manufacture of particle, whisker and short-fiber reinforced alloys. In this work, SPS technique is employed for the first ti…
View article: Forsterite/nano-biogenic hydroxyapatite composites for biomedical applications
Forsterite/nano-biogenic hydroxyapatite composites for biomedical applications Open
Recently, silicate materials have received attention as materials with promising applications in the bioceramics field. A recent study aimed to investigate the effect of forsterite (Mg2SiO4) addition to biogenic hydroxyapatite, Ca10(PO4)6(…
View article: High Velocity Suspension Flame Spraying (HVSFS) of Metal Suspensions
High Velocity Suspension Flame Spraying (HVSFS) of Metal Suspensions Open
Thermal spraying of metal materials is one of the key applications of this technology in industry for over a hundred years. The variety of metal-based feedstocks (powders and wires) used for thermal spray is incredibly large and utilizatio…
View article: Inversely 3D-Printed β-TCP Scaffolds for Bone Replacement
Inversely 3D-Printed β-TCP Scaffolds for Bone Replacement Open
The aim of this study was to predefine the pore structure of β-tricalcium phosphate (β-TCP) scaffolds with different macro pore sizes (500, 750, and 1000 µm), to characterize β-TCP scaffolds, and to investigate the growth behavior of cells…
View article: Residual Stress Evaluation in Ceramic Coating Under Industrial Conditions by Digital Holography
Residual Stress Evaluation in Ceramic Coating Under Industrial Conditions by Digital Holography Open
In this article, we describe a system suitable for the evaluation of residual stress in ceramic coating under industrial conditions.Laser ablation is used for material removal, and digital holography measures the displacements produced by …
View article: Process Technology, Applications and Thermal Resistivity of Basalt Fiber Reinforced SiOC Composites
Process Technology, Applications and Thermal Resistivity of Basalt Fiber Reinforced SiOC Composites Open
Promising lightweight composite materials, bridging the gap between Polymer and Ceramic Matrix Composites, are manufactured as polymer derived ceramics by the use of polysiloxanes and basalt fibers. Such competitive free formable Hybrid Co…
View article: Yttria Ceria Co-Stabilized Zirconia Reinforced with Alumina and Strontium Hexaaluminate
Yttria Ceria Co-Stabilized Zirconia Reinforced with Alumina and Strontium Hexaaluminate Open
Zirconia materials are frequently used in dental applications due to their excellent strength and their tooth-like aspect. Standard yttria stabilized zirconia (Y-TZP) ceramics suffer, however, from moderate toughness and vulnerability to l…
View article: Porous scaffolds based on biogenic poly ( <i>ε</i> -caprolactone)/hydroxyapatite composites: <i>in vivo</i> study
Porous scaffolds based on biogenic poly ( <i>ε</i> -caprolactone)/hydroxyapatite composites: <i>in vivo</i> study Open
Each year million tons of fish bones and shellfish are caught, which were causing a serious environmental problem. Although these wastes contain valuable minerals, their use is not widespread. The main objective of the present study is the…
View article: Siloxane Precursor-Based Protective Coatings for High Modulus Carbon Fibers in Ceramic Matrix Composites
Siloxane Precursor-Based Protective Coatings for High Modulus Carbon Fibers in Ceramic Matrix Composites Open
Carbon fibers are outstanding reinforcements for ceramic components due to their excellent creep and long-term thermochemical and thermomechanical stability. Nevertheless, these properties are dramatically downgraded if the unprotected fib…
View article: Enhanced Mechanical Properties in ED-Machinable Zirconia-Tungsten Carbide Composites with Yttria-Neodymia Co-Stabilized Zirconia Matrix
Enhanced Mechanical Properties in ED-Machinable Zirconia-Tungsten Carbide Composites with Yttria-Neodymia Co-Stabilized Zirconia Matrix Open
The electrical discharge machining-process (EDM) is a smart solution to optimize the manufacturing chain of customized and complex shaped ceramic components. To comply with the high requirements for the machine and mold design, it is neces…
View article: Carbon-Fibre-Reinforced SiC Composite (C/SiSiC) as an Alternative Material for Endoprosthesis: Fabrication, Mechanical and In-Vitro Biological Properties
Carbon-Fibre-Reinforced SiC Composite (C/SiSiC) as an Alternative Material for Endoprosthesis: Fabrication, Mechanical and In-Vitro Biological Properties Open
Particle-induced periprosthetic osteolysis and subsequent aseptic implant loosening are a major cause of compromising the long-term results of total joint replacements. To date, no implant has been able to mirror radically the tribological…
View article: Wire EDM of ZTA-NbC Dispersion Ceramics – The Influence of ED Machining on Mechanical Properties
Wire EDM of ZTA-NbC Dispersion Ceramics – The Influence of ED Machining on Mechanical Properties Open
Zirconia toughened alumina (ZTA) ceramics are well known for their good mechanical properties such as high hardness and bending strength and moderate fracture resistance. By adding an electrically conductive phase, such as a transition met…
View article: Doping of Alumina Substrates for Laser Induced Selective Metallization
Doping of Alumina Substrates for Laser Induced Selective Metallization Open
Laser induced selective activation and metallization of ceramics is a novel additive metal plating process enabling the application fine metallic paths or metallic surfaces on complex three-dimensionally shaped ceramic substrates. Metal de…
View article: 3D Powder Printed Bioglass and β-Tricalcium Phosphate Bone Scaffolds
3D Powder Printed Bioglass and β-Tricalcium Phosphate Bone Scaffolds Open
The use of both bioglass (BG) and β tricalcium phosphate (β-TCP) for bone replacement applications has been studied extensively due to the materials’ high biocompatibility and ability to resorb when implanted in the body. 3D printing has b…
View article: High velocity suspension flame spraying (HVSFS) of metal doped bioceramic coatings
High velocity suspension flame spraying (HVSFS) of metal doped bioceramic coatings Open
•Bioceramic coatings doped with metals for antibacterial effect.•Combination of suspension and precursor flame spraying.•Successful deposition of submicron metallic particles in bioceramic matrix.
View article: Evaluation of the Heat Recovery Potential by Using an Exergy Analysis Approach to Improve Energy Efficiency of Industrial Refrigeration Systems
Evaluation of the Heat Recovery Potential by Using an Exergy Analysis Approach to Improve Energy Efficiency of Industrial Refrigeration Systems Open
This work applies an exergy analysis approach to investigate the performance and waste heat recovery potential of an industrial air-cooled screw chiller.To reduce the factory overall primary energy demand, a 410 kW chiller with 274 kW heat…
View article: Thermodynamic Analysis of Resources Used in Thermal Spray Processes: Energy and Exergy Methods
Thermodynamic Analysis of Resources Used in Thermal Spray Processes: Energy and Exergy Methods Open
In manufacturing, thermal spray technology encompasses a group of coating processes that provide functional surfaces to improve the performance of the components and protect them from corrosion, wear, heat and other failings. Many types an…
View article: Hot Corrosion Resistance of La2Zr2O7 Coat on Stainless Steel Alloy
Hot Corrosion Resistance of La2Zr2O7 Coat on Stainless Steel Alloy Open
In the present study, La2Zr2O7 was used as a coat for stainless steel alloy. Lanthanum zirconate coat was sprayed using plasma spray technique. The preparation and characterization of La2Zr2O7 coat was studied. Hot corrosion of the coat su…