Fabrication of coplanar microheater platform for LPG sensing applications

Bagga, Shobi; Akhtar, Jamil; Mishra, Sanjeev; Preeti, .

doi:10.1007/s00542-019-04586-x

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…These components are designed using UNS N06003 to achieve serviceability with high temperature strength [5,6]. Area of applications of UNS N06003 include 1225 (2022) 012065 IOP Publishing doi:10.1088/1757-899X/1225/1/012065 2 marine structures, land-based utilities in power generation, vehicular components [6], heating sources in electronic devices [10,11,12],aircraft turbine engine parts (equiaxed or single crystal) etc. These are designed based on applicability of desired creep resistance.…”

Section: Introductionmentioning

confidence: 99%

Study on Defect Reduction in Casting of Ni-Cr alloy (UNS N06003)

Samvatsar

Dave

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In modern times, selection criteria of materials are solely based on its utilization. The characteristics of materials like high temperature sustainability with regard to its strength and corrosion resistance is the primary requirement to satisfy its operations. Industries categorised in sectors like energy, manufacturing, electronics etc. greatly rely on input materials and their purity decides their performance. Amongst many developed alloys, nickel-based alloys find their position in applications having temperatures from cryo to nuclear ranges. One of such unique materials, being used from minute components of semiconductor industry to huge components of marine industry is UNS N06003. It is basically Ni-Cr based alloy having greater than three-fourth fraction of nickel. For major applications wrought material is widely used, but cast material marks their positions in selected applications. This paper deals with casting of UNS N06003 and improving its quality. The reasons associated with cast defects and drawbacks of defects in terms of performance have been discussed. To minimize casting defects and produce a sound casting, this research adopts a novel approach of removal of unwanted gaseous elements. In degassing stage, molten metal is introduced with the combination of calcium-based fluxes which mainly remove the entrapped gases and lighter impurities in the form of slag. It has been found that the addition of quicklime (CaO) in combination with calcium carbide (CaC2) resulted in reduction of gaseous elements like nitrogen, phosphorus and sulphur. Up to 33% reduction of gaseous elements has been detected.

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Section: Introductionmentioning

confidence: 99%

Study on Defect Reduction in Casting of Ni-Cr alloy (UNS N06003)

Samvatsar

Dave

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Heating in microsystems, referred to as microheaters, has a fundamental role in the operation of different devices, such as thermal flow sensors [ 1 ], microelectromechanical systems (MEMS) gas sensors [ 2 , 3 , 4 , 5 ], liquid petroleum sensing (LPG) [ 6 ], trace detection of explosives [ 7 ], thermal electric generation on microchannels [ 8 ], and temperature control of environment for chemical and biological processes at small scales [ 9 , 10 ]. The temperature control of microsystem devices can be achieved using macroscale equipment, such as incubators and surface heaters.…”

Section: Introductionmentioning

confidence: 99%

“…Similar approaches are currently used for fabricating microheaters, with diverse fabrication methods, both combined or not combined, such as physical vapor deposition (PVD) deposition methods [ 6 , 10 , 23 , 24 , 25 ], photolithography with digital light processing [ 23 ], and laser beam techniques [ 25 ]. Despite all the available techniques, research in emerging countries requires a more cost-effective approach.…”

Section: Introductionmentioning

confidence: 99%

Design, Simulation, and Fabrication of a Copper–Chrome-Based Glass Heater Integrated into a PMMA Microfluidic System

2021

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In this paper, the development of a copper–chrome-based glass microheater and its integration into a Polymethylmethacrylate (PMMA) microfluidic system are presented. The process highlights the importance of an appropriate characterization, taking advantage of computer-simulated physical methods in the heat transfer process. The presented system architecture allows the integration for the development of a thermal flow sensor, in which the fluid flows through a 1 mm width × 1 mm length microchannel across a 5 mm width × 13 mm length heating surface. Using an electrothermal analysis, based on a simulation and design process, the surface heating behavior curve was analyzed to choose a heating reference point, primarily used to control the temperature point within the fluidic microsystem. The heater was characterized using the theory of electrical instrumentation, with a 7.22% error for the heating characterization and a 5.42% error for the power consumption, measured at 0.69 W at a temperature of 70 °C. Further tests, at a temperature of 115 °C, were used to observe the effects of the heat transfer through convection on the fluid and the heater surface for different flow rates, which can be used for the development of thermal flowmeters using the configuration presented in this work.

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