High-Pressure Moessbauer Studies on Iron and Its Dilute Alloys.

Moyzis, J.

doi:10.2172/4545644

Cited by 1 publication

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“…From the value of Debye temperature and Debye approximation we calculate the pressure effects on the recoilless fraction ratio r ftheor =f p /f o for (Fe 57 -Cu) and compare with experimental recoilless fraction ratio (r fexp =f p /f 0 ) (Moyzis 1968) as shown in fig. (4) we get good fitting.…”

Section: -Computation and Results:-mentioning

confidence: 99%

“…In Debye approximation, f-fraction of dilute alloy of Fe 57 in Cu at P pressure expressed as (Moyzis 1968…”

Section: -Theoretical Details 21 the F-fraction (Recoilless Fraction)mentioning

confidence: 99%

“…T D …… (7) = pressure derivative of adiabatic bulk modulus at atmospheric pressure =5.68 (Moyzis 1968).…”

Section: -Theoretical Details 21 the F-fraction (Recoilless Fraction)mentioning

confidence: 99%

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A Numerical Model for Computation the Optimum Value of Second Gruneisen Parameter (q) for Copper

Ahmad¹,

Hussien²,

Al-Sheihk³

2012

J.Edu.Sci.

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‫البحث‬ ‫ملخص‬ ‫ال‬ ‫هذا‬ ‫في‬ ‫عمى‬ ‫يعتمد‬ ‫عددية‬ ‫امثمية‬ ‫نموذج‬ ‫صياغة‬ ‫تم‬ ‫بحث‬ ‫يبية‬ ‫التجر‬ ‫القيم‬ ‫ل‬ ‫من‬ ‫كل‬ ‫الضغط‬ ‫يبي‬ ‫التجر‬ (0-120) kbar ‫و‬ ‫تداد‬ ‫االر‬ ‫من‬ ‫الخالي‬ ‫الجزء‬ r fexp =f p /f 0 ‫لتوضيح‬ ‫وذلك‬ ‫تأثير‬ ‫الثاني‬ ‫و‬ ‫األول‬ ‫كرونيشن‬ ‫ومعامل‬ ‫ديباي‬ ‫ة‬ ‫ار‬ ‫حر‬ ‫درجة‬ ‫من‬ ‫كل‬ ‫عمى‬ ‫الضغط‬ (, q) ‫اذ‬ ‫أمكن‬ ‫استنتاج‬ ‫ا‬ ‫المثمى‬ ‫لقيمة‬ ‫م‬ q ‫القيمة‬ ‫وباستخدام‬ ‫لمنحاس‬ ‫المثمى‬ ‫الغرفة‬ ‫ة‬ ‫ار‬ ‫حر‬ ‫درجة‬ ‫عند‬ ‫دبياي‬ ‫يب‬ ‫تقر‬ ‫مع‬ ‫الضغط‬ ‫تاثير‬ ‫وتحت‬ ‫تداد‬ ‫االر‬ ‫من‬ ‫الخالي‬ ‫الجزء‬ ‫حساب‬ ‫تم‬ r ftheor =f p /f o ‫ألشعة‬ ‫المنبعثة‬ ‫كاما‬ ‫من‬ Fe 57 ‫في‬ Cu ( Fe 57 : Cu ) ‫العممية‬ ‫القيم‬ ‫مع‬ ‫متطابقة‬ ‫النتائج‬ ‫وكانت‬ ‫المأخوذة‬ ‫مصادر‬ ‫من‬ ‫أخ‬ ‫رى‬ . ABSTRACTIn the present work a numerical optimization model is constructed which is based on the experimental pressure (p exp ) and experimental recoilless fraction ratio (r fexp =f p /f 0 ) data in order to explain the pressure effect on Gruneisen parameters(, q) and Debye temperature.The model was able to compute the optimum q value for copper, the observed optimum value for q was used with Debye approximation at room temperature under pressure to calculate the recoilless fraction ratio r ftheor =f p /f o for (Fe 57 -Cu), It has been found that the calculated results of (ffraction) are in good agreement with the experimental data of recoilless fraction ratio.

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Section: -Computation and Results:-mentioning

confidence: 99%

“…In Debye approximation, f-fraction of dilute alloy of Fe 57 in Cu at P pressure expressed as (Moyzis 1968…”

Section: -Theoretical Details 21 the F-fraction (Recoilless Fraction)mentioning

confidence: 99%

See 1 more Smart Citation

A Numerical Model for Computation the Optimum Value of Second Gruneisen Parameter (q) for Copper

Ahmad¹,

Hussien²,

Al-Sheihk³

2012

J.Edu.Sci.

View full text Add to dashboard Cite

show abstract

High-Pressure Moessbauer Studies on Iron and Its Dilute Alloys.

Cited by 1 publication

References 42 publications

A Numerical Model for Computation the Optimum Value of Second Gruneisen Parameter (q) for Copper

A Numerical Model for Computation the Optimum Value of Second Gruneisen Parameter (q) for Copper

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