000			a
999			_c17748 _d17748
003			OSt
005			20221012110906.0
008			221012b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_918249 _aMeena Kuldeep
245			_aInfluences of various parameters on sound absorption properties of vetiver grass fiber-based developed composite material
250			_aVol.60(5), May
260			_aNew Delhi _bCSIR _c2022
300			_a422-429p.
520			_aRecently, the trend of natural fibers based eco-friendly materials utilization in the field of acoustic application has been growing rapidly in place of traditional synthetic materials to counter environmental issues, due to their cheap processing cost and other several advantages. In this work, sound absorption and thermal insulation properties of the vetiver grass (Chrysopogon zizanioides) based material have been investigated. Efforts have been carried out in developing porous vetiver grass fibers based composite material. The developed samples tested for the sound absorption coefficient (alpha) over a wide range of frequencies (100 Hz – 4000 Hz) by the reverberation chamber method as per IS 8225-1987/ISO 354- 2003/ASTM 423-909-19 and noise reduction coefficient (NRC) also been calculated. The experimental outcome proved that vetiver grass-based manufactured material has comparable sound absorption to already developed traditional synthetic materials. Further, two different bulk densities, thickness and fibre lengths-based samples were developed and their sound absorption acoustic performances were evaluated to see the influences of these parameters on sound absorption characteristics. Apart from these, some required physical properties as per application requirements were also discussed. However, in this study major focus has been done on acoustical properties.
650		0	_94642 _aHumanities and Applied Sciences
700			_918250 _aSingh, Mahavir
773	0		_x0019-5596 _tIndian journal of pure & applied physics (IJPAP) _dNew Delhi CSIR-NISCAIR
856			_uhttp://op.niscpr.res.in/index.php/IJPAP/article/view/58193 _yClick here
942			_2ddc _cAR