I have no idea how to work that out from the given information...in lectures we were shown how to calculate d when the lattice plane was knownLord Jestocost said:
I still can't get it to work out. The ratio of sqr(h2 + k2 + l2) from when m=2, to when m=3 is 8.18...Lord Jestocost said:
X-ray diffraction is a technique used to study the structure of crystalline materials. It involves shining a beam of X-rays onto a crystal and measuring the angles at which the X-rays are diffracted, or scattered, by the crystal. This information can then be used to determine the arrangement of atoms within the crystal.
X-ray diffraction was discovered by physicist Max von Laue in 1912. He showed that X-rays could be diffracted by crystals, confirming the wave nature of X-rays and laying the foundation for further studies in crystallography.
Bragg's law is a mathematical equation that describes the relationship between the angle of diffraction, the wavelength of the X-rays, and the spacing of the crystal lattice. It states that when X-rays are diffracted by a crystal, the angle of incidence and the angle of reflection will be equal, and the path difference between the waves must be a whole number multiple of the X-ray wavelength. This law allows us to calculate the spacing between atoms in a crystal based on the diffraction pattern.
X-ray diffraction has many applications in various fields such as materials science, chemistry, and biology. It is commonly used to determine the atomic and molecular structure of crystals, identify unknown substances, and study phase transitions in materials. X-ray diffraction is also an important tool in drug development, as it can help determine the structure of proteins and other biomolecules.
One limitation of X-ray diffraction is that it can only be used on crystalline materials, as amorphous materials do not have a regular repeating pattern of atoms. Additionally, X-ray diffraction cannot provide information about the arrangement of atoms in the non-crystalline regions of a material. It is also important to note that X-ray diffraction cannot distinguish between different elements, so additional techniques may be needed to fully analyze a sample.
