The mechanochemical processing of aerospace metals

Froes, F. H.; Trindade, B.

doi:10.1016/j.jmatprotec.2004.04.118

Cited by 14 publications

(7 citation statements)

References 11 publications

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“…In mechanochemical synthesis, the mechanical and chemical phenomena are combined in molecular scale. 58 The best example of mechano-chemical synthesis is ball milling. Ball milling is one of the most widely used techniques for synthesizing nanosized metals, metallic alloys, oxides, sulphates, etc.…”

Section: Physical Methodsmentioning

confidence: 99%

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Conductive silver inks and their applications in printed and flexible electronics

et al. 2015

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Outline:Conductive inks are widely investigated area in the recent years due to its popularity in printed electronics (PE), flexible electronics (FE) and it comprises specific and unique applications which belong to a whole next level of future technology. In this context, silver is being acutely researched material for its encouraging application in conductive inks. In printing technology silver conductive inks has major role in electronic applications. The emerging integration of different technologies was silver nanoinks. In recent years printed electronics market is being dominated by expensive materials such as gold, platinum etc.which are costly/complex instruments, to overcome these drawbacks silver conductive inks can relieve the current technology. The present printed circuit boards (PCBs) manufactures use complex and expensive techniques to fabricate the circuit boards which in turn levitates the overall cost. Solvent based silver conductive inks are capable to substitute the PCB technology while reducing the cost of manufacturing. Due to its stellar reputation, investors are looking forward to apply this technology in printed electronics industries.2 planet. Silver conductive inks have silver in its nanoform which is an extensively engaging the nanotechnology.Silver in the nanometer range has predominantly occupied the interest of researchers since the beginning of the nanotechnology era. Silver was and is considered a prominent material;and even historically silver has its own importance. This novel material has been prospering in its applications ever since researchers focused on its study in the nanoscale. This led to a promising application in many fields of science and technology. The properties which make silver notable are that it is rare, strong, corrosion resistant, and unaffected by moisture. Silver is also resonant, moldable, malleable, and possesses the highest thermal and electric conductivity of any substance. Silver is one of the strongest oxidants, it is an essential catalyst for chemical process industry.Metal nanoparticles act as a key element in conductive inks. In nano range, silver has gained so much prominence that it does not require any special introduction about its enhanced properties possessed in the nanometer range. Silver nanoparticles (Ag NPs) have been synthesized using different types of approaches and each type of synthesis has its own advantages and disadvantages. Silver has unique and enhanced properties in the nanometer range by possessing highest electrical conductivity per unit volume when compared to any other metal, so it is expected to be used extensively in printed electronics technology. In this review we try to bring out the possible ways which were successful in synthesis of conductive ink derived from silver nanomaterial. This work is an attempt to understand the significance of silver based conductive inks and motivate researchers who opt to bring a change in future electronics. We focussed this review in gathering a brief preface of all the possible metho...

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Section: Physical Methodsmentioning

confidence: 99%

“…In mechanochemical synthesis, the mechanical and chemical phenomena are combined in molecular scale [58] . In mechanochemical synthesis, the mechanical and chemical phenomena are combined in molecular scale [58] .…”

Section: Brief Introduction On Physical Synthesis Of Nanoparticlesmentioning

confidence: 99%

Conductive silver inks and their applications in printed and flexible electronics

et al. 2015

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“…50 kWh/kg Ti 6 ), environmentally unfriendly (> 2 kg CO 2 per kg Ti) and a semi-batch process. Thus, there have been continuous research and industrial efforts to improve or replace the Kroll process [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] as summarised in the supplementary Table S1.…”

Section: Introductionmentioning

confidence: 99%

Development of the Fray-Farthing-Chen Cambridge Process: Towards the Sustainable Production of Titanium and Its Alloys

Dolganov

et al. 2017

JOM

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“…For near net shape processing, 7 powder metallurgy (PM) is one of the best options to fabricate Ti-MMCs. [7][8][9][10][11] Considering different reinforcement materials, recent research seems to have revealed the property advantages that can be achieved by incorporating boron compounds as reinforcements in Ti or Ti alloys. 12,13 The aims of the present work were the investigation of the influence of the starting powder on the mechanical properties of Ti based MMC as well as the optimisation of the sintering parameters and the improvement of the mechanical properties by varying the ceramic particles reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Effect of starting powder grade on sintering and properties of PM titanium metal matrix composites

2009

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The attractive physical and mechanical properties that can be obtained with Ti metal matrix composites (Ti-MMCs), such as high specific modulus, strength or wear resistance have been documented extensively. Interest in MMCs for use in the automotive industries, aerospace, and other structural applications has increased over the past 25 years as a result of several processing routes being developed and availability of reinforcements. Additionally, Ti powder metallurgy offers the possibility of creating net shape or near net shape parts without the material loss and cost associated with machining intricate components from wrought stock material, Ti being notoriously difficult to machine. This work focuses on research of a suitable Ti based metal matrix which will be reinforced by particles. First an adequate sintering assembly was designed and studied. Next, in order to achieve desired levels of mechanical properties, different Ti powders (either pure Ti or Ti hydride) were tested as metal matrix. These compacts were handled in different atmospheres (Ar and air) and compacted at different pressures followed by sintering at different conditions (temperature, time). Characterisation of the samples included hardness, density, oxygen content and microstructural analysis. This showed the influence of impurities in the raw powder as well as of the powder size and the processing parameters. Finally after the characterisation results, the two most suitable starting powders were selected for the fabrication of the Ti-MMCs. Such Ti based matrices have been reinforced with particles (TiB 2 ) at varying contents. Conclusively, the characterisation results of the compacted Ti based composites showed the importance of the adequate selection of the starting powder and the processing parameters simultaneously to achieve the desirable levels of mechanical properties for the Ti based composites.

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The mechanochemical processing of aerospace metals

Cited by 14 publications

References 11 publications

Conductive silver inks and their applications in printed and flexible electronics

Conductive silver inks and their applications in printed and flexible electronics

Development of the Fray-Farthing-Chen Cambridge Process: Towards the Sustainable Production of Titanium and Its Alloys

Effect of starting powder grade on sintering and properties of PM titanium metal matrix composites

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