Dental Ceramics. Microstructure, Properties and Degradation Series: Topics in Mining, Metallurgy and Materials Engineering
01 Jan 2013-
TL;DR: Dental Ceramics: Microstructure, Properties and Degradation Series: Topics in Mining, Metallurgy and Materials Engineering - Libros de Medicina - Odontologia - 51,95.
Abstract: Dental Ceramics. Microstructure, Properties and Degradation Series: Topics in Mining, Metallurgy and Materials Engineering - Libros de Medicina - Odontologia - 51,95
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TL;DR: In this article, hydrometallurgical approaches have been successfully employed for metal separation and recovery from various types of waste materials, and they are a promising technology for metal processing.
Abstract: Hydrometallurgical approaches have been successfully employed for metal separation and recovery from various types of waste materials. Therefore, hydrometallurgy is a promising technology for metal...
42 citations
TL;DR: In this article, a review comprehensively covers the research accomplished in the field of laser welding of biomedical devices and implant materials, including biomedical devices, implant materials and their applications in the biomedical field.
Abstract: This review comprehensively covers the research accomplished in the field of laser welding of biomedical devices and implant materials. Laser welding technology in the recent past has been ...
23 citations
Cites background from "Dental Ceramics. Microstructure, Pr..."
...The location of such devices and implants is presented schematically in Figure 1.([63]) The dependency of humans on biomaterials to survive and improve the quality of living has contributed to a current biomedical market of $134....
[...]
15 Dec 2020
TL;DR: A general overview of the additive manufacturing and biomaterials field is provided and possibilities for deepening the knowledge in specific aspects are provided as it comprises comprehensive tables including materials, applications, AM techniques, and references.
Abstract: Biomaterials are in high demand due to the increasing geriatric population and a high prevalence of cardiovascular and orthopedic disorders. The combination of additive manufacturing (AM) and biomaterials is promising, especially towards patient-specific applications. With AM, unique and complex structures can be manufactured. Furthermore, the direct link to computer-aided design and digital scans allows for a direct replicable product. However, the appropriate selection of biomaterials and corresponding AM methods can be challenging but is a key factor for success. This article provides a concise material selection guide for the AM biomedical field. After providing a general description of biomaterial classes—biotolerant, bioinert, bioactive, and biodegradable—we give an overview of common ceramic, polymeric, and metallic biomaterials that can be produced by AM and review their biomedical and mechanical properties. As the field of load-bearing metallic implants experiences rapid growth, we dedicate a large portion of this review to this field and portray interesting future research directions. This article provides a general overview of the field, but it also provides possibilities for deepening the knowledge in specific aspects as it comprises comprehensive tables including materials, applications, AM techniques, and references.
19 citations
Cites background from "Dental Ceramics. Microstructure, Pr..."
...without being separated from the host tissue [18]....
[...]
TL;DR: Immersion of zirconia in APF solutions showed deterioration limited to the surface, not extending to the bulk of the material, which can be elucidated from the study.
Abstract: Objective The corrosion behavior of zirconia in acidulated phosphate fluoride (APF) representing acidic environments and fluoride treatments was studied. Material and Methods Zirconia rods were immersed in 1.23% and 0.123% APF solutions and maintained at 37°C for determined periods of time. Surfaces of all specimens were imaged using digital microscopy and scanning electron microscopy (SEM). Sample mass and dimensions were measured for mass loss determination. Samples were characterized by powder X-ray diffraction (XRD) to detect changes in crystallinity. A biosensor based on electrochemical impedance spectroscopy (EIS) was used to detect ion dissolution of material into the immersion media. Results Digital microscopy revealed diminishing luster of the materials and SEM showed increased superficial corrosion of zirconia submerged in 1.23% APF. Although no structural change was found, the absorption of salts (sodium phosphate) onto the surface of the materials bathed in 0.123% APF was significant. EIS indicated a greater change of impedance for the immersion solutions with increasing bathing time. Conclusion Immersion of zirconia in APF solutions showed deterioration limited to the surface, not extending to the bulk of the material. Inferences on zirconia performance in acidic oral environment can be elucidated from the study.
18 citations
Dissertation•
12 Oct 2018
TL;DR: In this paper, the authors propose a flowsheet for the valorisation of metals from real spent NiMH batteries based on innovative extraction and recovery processes of elements by hydrometallurgy and electrochemistry, which requires the replacement of volatile organic compounds by ionic liquids, respecting the principles of green chemistry.
Abstract: Nickel-metal hydride (NiMH) batteries are currently dominating the market of energy storage in hybrid electric vehicles. 1 billion cells are estimated to be produced each year. In their end-of-life, these electronical wastes exhibit low recycling rates, despite the fact that NiMH batteries contain high amounts of valuable and strategic metals. Two main metal families coexist as an intermetallic compound in negative electrodes: transition metals (TM) (Ni, Co, Mn and Fe) and rare earth elements (REE) (La, Ce, Nd and Pr). Among TM, cobalt exhibits the highest criticality rate. Indeed, natural ores will not cover the increasing cobalt demand linked to emerging technologies. REE produced at more than 97 % in China are at the centre of European Union’s preoccupations. To tackle economic and environmental issues, this project, supported by the labex CEMAM is a partnership between the company Recupyl® and the academic laboratory LEPMI. It aims at investigating on low environmental impact routes for the recycling of metals present in real spent NiMH batteries. This requires the replacement of volatile organic compounds by ionic liquids, respecting the principles of ‘green chemistry’. Based on innovative extraction and recovery processes of elements by hydrometallurgy and electrochemistry, we propose a flowsheet for the valorisation of metals from those batteries.
11 citations
References
More filters
TL;DR: In this article, hydrometallurgical approaches have been successfully employed for metal separation and recovery from various types of waste materials, and they are a promising technology for metal processing.
Abstract: Hydrometallurgical approaches have been successfully employed for metal separation and recovery from various types of waste materials. Therefore, hydrometallurgy is a promising technology for metal...
42 citations
TL;DR: In this article, a review comprehensively covers the research accomplished in the field of laser welding of biomedical devices and implant materials, including biomedical devices, implant materials and their applications in the biomedical field.
Abstract: This review comprehensively covers the research accomplished in the field of laser welding of biomedical devices and implant materials. Laser welding technology in the recent past has been ...
23 citations
15 Dec 2020
TL;DR: A general overview of the additive manufacturing and biomaterials field is provided and possibilities for deepening the knowledge in specific aspects are provided as it comprises comprehensive tables including materials, applications, AM techniques, and references.
Abstract: Biomaterials are in high demand due to the increasing geriatric population and a high prevalence of cardiovascular and orthopedic disorders. The combination of additive manufacturing (AM) and biomaterials is promising, especially towards patient-specific applications. With AM, unique and complex structures can be manufactured. Furthermore, the direct link to computer-aided design and digital scans allows for a direct replicable product. However, the appropriate selection of biomaterials and corresponding AM methods can be challenging but is a key factor for success. This article provides a concise material selection guide for the AM biomedical field. After providing a general description of biomaterial classes—biotolerant, bioinert, bioactive, and biodegradable—we give an overview of common ceramic, polymeric, and metallic biomaterials that can be produced by AM and review their biomedical and mechanical properties. As the field of load-bearing metallic implants experiences rapid growth, we dedicate a large portion of this review to this field and portray interesting future research directions. This article provides a general overview of the field, but it also provides possibilities for deepening the knowledge in specific aspects as it comprises comprehensive tables including materials, applications, AM techniques, and references.
19 citations
TL;DR: Immersion of zirconia in APF solutions showed deterioration limited to the surface, not extending to the bulk of the material, which can be elucidated from the study.
Abstract: Objective The corrosion behavior of zirconia in acidulated phosphate fluoride (APF) representing acidic environments and fluoride treatments was studied. Material and Methods Zirconia rods were immersed in 1.23% and 0.123% APF solutions and maintained at 37°C for determined periods of time. Surfaces of all specimens were imaged using digital microscopy and scanning electron microscopy (SEM). Sample mass and dimensions were measured for mass loss determination. Samples were characterized by powder X-ray diffraction (XRD) to detect changes in crystallinity. A biosensor based on electrochemical impedance spectroscopy (EIS) was used to detect ion dissolution of material into the immersion media. Results Digital microscopy revealed diminishing luster of the materials and SEM showed increased superficial corrosion of zirconia submerged in 1.23% APF. Although no structural change was found, the absorption of salts (sodium phosphate) onto the surface of the materials bathed in 0.123% APF was significant. EIS indicated a greater change of impedance for the immersion solutions with increasing bathing time. Conclusion Immersion of zirconia in APF solutions showed deterioration limited to the surface, not extending to the bulk of the material. Inferences on zirconia performance in acidic oral environment can be elucidated from the study.
18 citations
Dissertation•
12 Oct 2018
TL;DR: In this paper, the authors propose a flowsheet for the valorisation of metals from real spent NiMH batteries based on innovative extraction and recovery processes of elements by hydrometallurgy and electrochemistry, which requires the replacement of volatile organic compounds by ionic liquids, respecting the principles of green chemistry.
Abstract: Nickel-metal hydride (NiMH) batteries are currently dominating the market of energy storage in hybrid electric vehicles. 1 billion cells are estimated to be produced each year. In their end-of-life, these electronical wastes exhibit low recycling rates, despite the fact that NiMH batteries contain high amounts of valuable and strategic metals. Two main metal families coexist as an intermetallic compound in negative electrodes: transition metals (TM) (Ni, Co, Mn and Fe) and rare earth elements (REE) (La, Ce, Nd and Pr). Among TM, cobalt exhibits the highest criticality rate. Indeed, natural ores will not cover the increasing cobalt demand linked to emerging technologies. REE produced at more than 97 % in China are at the centre of European Union’s preoccupations. To tackle economic and environmental issues, this project, supported by the labex CEMAM is a partnership between the company Recupyl® and the academic laboratory LEPMI. It aims at investigating on low environmental impact routes for the recycling of metals present in real spent NiMH batteries. This requires the replacement of volatile organic compounds by ionic liquids, respecting the principles of ‘green chemistry’. Based on innovative extraction and recovery processes of elements by hydrometallurgy and electrochemistry, we propose a flowsheet for the valorisation of metals from those batteries.
11 citations