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حکیم محمد اسمٰعیل

حکیم محمداسماعیل
حکیم محمداسماعیل صاحب کے انتقال کی خبرسے بڑاصدمہ ہوا،مرحوم نے بڑی تکالیف اٹھائیں،اﷲ تعالیٰ مغفرت فرمائے۔ [اکتوبر ۱۹۶۲ء]

 

قراءات الإمام عبد الله بن عباس رضي الله عنه و أثرها في تفسير كتاب الله

Ṣaḥabah (R.T.A) especially Ahal-Bait have distinct position among Muslim Ummah. They have served Islamic religion in its initial period and preserved it for the generations to come. Haḍrat ‘Abdullah Ibn e ‘Abbas (RTA) was not only a Ṣaḥabi-e–Rasool (companion of the Prophet), but he was also a member of the family of Muḥammad (peace be on him). He remained in his company during his journeys and his stays in different places and got (training) from him. Muḥammad (peace be on him) made a special prayer for him i.e. “O Allah, give him understanding in religion and teach him the interpretation of the Qur’ān.” In this article the researcher aims to analyse and explain his services in the field of Islamic Sciences, Tafsir ul, Qur’ān specially the number and detail of Qiraat e Mutawatirah and Shaẓah narrated by him and their effects on the Science of Tafsir ul. Qur’ān.

Merciful Effect of Process Parameters on Ceramic-Ceramic Joints

The role of process parameters; time, temperature and applied pressure, in fabricating ceramic-ceramic joints with a metallic interlayer through pressure assisted air brazing in a purpose built furnace has been studied. The focus has been mainly on the alumina-alumina bonds prepared with pure aluminum interlayer. However some samples were also prepared with various aluminum-silicon alloys, pure copper and nickel plated copper interlayer. To broaden the application of the developed technique, samples prepared with nickel plated copper interlayer were also studied in some detail. The furnace was designed and fabricated in such a way that it was possible to apply an accurate load upto 30 MPa with the help of a lever mechanism. The temperature range employed during experimentation was 700-1150oC, while the holding time was varied from 15 to 240 minutes. The joints were tested for their flexural strength through four point bend test. Asjoined samples were studied through optical and scanning electron microscopy for integrity of the interface as well as changes in thickness of the interlayer. The selected fractured samples were studied through scanning electron microscopy to correlate the improvement in the strength with the changes in interface. It was observed that the application of the pressure during the brazing process greatly reduced the holding time as well as the processing temperature for a given joint strength. It was further observed that in the joints prepared under applied loads, it was possible to obtain joint strength which was many times higher than the maximum obtainable in samples prepared under comparable holding time, temperature and atmospheric conditions but with no applied load.
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