تهیه و بررسی ساختار بلوری Me2=Me24= (Sio4)3 با استفاده از پراش سنچجی پرتو X

بررسی تاثیر نواقص بر پارامترهای بلوری با استفاده از پراش پرتو X

Formation o f any kinll:-; ur crys ta l defects is followed hy creatIOn of mechanil.:ul s t resscs wi thim the t:ry:-;tal strut:tun.!. which in turn l.:'IUses l<.lllicc paramc ters to change. these changes resu lt a rclevant disp lacement of the X-ray dilfractogram pcaks. In this wo rk r e la tive tli :-;piaccmcllt ur it certa in peak ( III) of de fect ed and annealed :-;amp!c:.:s of AI a...

تعیین ساختار بلوری و مولکولی دی متواکسی کالیکس (4) ارین C30H28O11 با استفاده از روش تک بلوری پرتو X

تفسیر نقشهای پراش و تعیین ساختار بلوری CdSe با استفاده از میکروسکوپ الکترونی تراگسیلی

Single crystals of binary semiconducto r CdSe were grown by subJimalion and conde nsation techniques wing ca rrier argon gas. Powder X-ray diffraction as well as Transmission e lectron microscopy o f powde red crystals confiml Ihe cryslal st ructure to be hexagonal with : a = 4.299 A, c = 7.010 A and space grope P6,MC

تهیه و شناسایی کمپلکس پروپیون آمید - اکسالیک اسید به روش پراش سنجی پودری پرتو x

A propionamidc oxalic acid complex was prepared flOm propionamidc and oxalic aCid . It was a bright and hygroscopic compound with vcry low hardness and was accompanied with deformation in air at room temperature. lis X - ray powder diffraction data were collected by a computer diffractometer and was analyLCd by profile analysis tcchniqucs. The compound was crystallized in triclinic system...

بررسی کمّی فراورده‌های فرایند پخت در محیط اکسایش براساس نتایج پراش پرتو X در سرامیک‌های رسی

The influence of firing conditions on the mineralogical composition of clay base ceramics is studied. Experimental samples fired in oxidation atmosphere at temperature rates 850, 900, 950, 1000 and 1050 with respect to high amount of CaO in raw materials (Ave. 18.76 %), these samples classified in Ca-rich clay group. The determination of chemical composition, phase structure and mineralogy were...

بررسی میزان و نقش آلایش پتاسیم در نمونه ابررسانا (YBa2-xKxCu3O6+Y) با استفاده از آنالیز ریتولد الگوهای پراش پرتو x

In this article, we have employed GSAS software to do Reitveld profile refinement on XRD patterns from H-Tc superconductor powder YBa2-xKxCu3O7-y (0<x,y<1) samples. Increasing the Potassium doping content of the sample, x, causes some changes in the XRD patterns such as creating new peaks and also deteriorating of goodness of the refinement, χ2. On the other hand, substituting of K instead of B...