--- title: Crystal Structures & Defects description: This topic examines the atomic arrangement in crystalline solids and the imperfections that occur within them. Learners will understand how unit cells, dislocations, vacancies, and grain boundaries influence the physical, mechanical, and electrical properties of materials. category: engineering subcategory: materials-science difficulty: beginner, intermediate, advanced url: /subject/crystal-structures-and-defects --- # Crystal Structures & Defects This topic examines the atomic arrangement in crystalline solids and the imperfections that occur within them. Learners will understand how unit cells, dislocations, vacancies, and grain boundaries influence the physical, mechanical, and electrical properties of materials. ## Available Resources 3 Books • 1 Courses • 4 Websites ## Websites ### 1. Materials Project Open database from Lawrence Berkeley National Laboratory holding computed properties for over a hundred thousand inorganic crystals. Users can look up a compound's structure, symmetry, formation energy and phase diagram, and pull the same data through a Python API. **Difficulty:** Beginner | **Price:** Free **Link:** https://materialsproject.org/ **Tags:** crystal-structures, materials-science, density-functional-theory, computational-materials, materials-database ### 2. DoITPoMS Interactive teaching package from Cambridge's Department of Materials Science and Metallurgy, covering lattices, unit cells, close packing, symmetry operations and the seven crystal systems, with animations and self-assessment questions that build fluency reading crystal structures. **Difficulty:** Beginner | **Price:** Free **Link:** https://www.doitpoms.ac.uk/tlplib/crystallography/index.php **Tags:** crystallography, crystal-lattices, symmetry, unit-cell, materials-science ### 3. crystallography.net Crystallography.net is an educational resource offering free access to crystal-structure data and interactive visualization tools, plus tutorials and references on crystal symmetry and defects. **Difficulty:** Intermediate | **Language:** English | **Price:** Free **Link:** https://crystallography.net **Tags:** websites, engineering-manufacturing, material-science ### 4. International Centre for Diffraction Data (ICDD) Site of the nonprofit that maintains the Powder Diffraction File, the reference database for identifying crystalline materials from X-ray diffraction patterns. It also offers tutorials, webinars and workshops on powder diffraction, helping researchers match measured patterns to known phases and interpret crystal structures. **Difficulty:** Advanced | **Language:** English | **Price:** Free **Link:** https://icdd.com **Tags:** x-ray-diffraction, powder-diffraction, crystallography, phase-identification, materials-characterization ## Courses ### 1. Introduction to Solid State Chemistry (MIT 3.091SC) **Author:** Donald Sadoway First-year chemistry taught through solid-state materials: atomic structure, bonding, crystal structures, defects, glasses, phase diagrams, kinetics and electrochemistry. 59 lecture videos, course notes, homework and exams with solutions let learners connect chemical principles to engineering materials. **Difficulty:** Beginner | **Price:** Free **Link:** https://ocw.mit.edu/courses/3-091sc-introduction-to-solid-state-chemistry-fall-2010/ **Tags:** solid-state-chemistry, materials-science, chemical-bonding, crystallography, general-chemistry ## Books ### 1. Introduction to Crystallography **Author:** Donald E. Sands Short Dover text covering lattice points, unit cells, point groups, space groups and equivalent positions, then x-ray diffraction and structure determination. Worked problems with solutions let readers self-check; ends with descriptions of simple crystal structures. **Difficulty:** Intermediate | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/0486678393?tag=edmonddante07-20 **Tags:** books, engineering-manufacturing, material-science ### 2. Crystals, Defects and Microstructures **Author:** Rob Phillips Graduate text on modeling materials across length scales, from atomistic and continuum descriptions of point defects and dislocations up to microstructural evolution. Shows how to choose and connect models rather than apply single formulas. **Difficulty:** Intermediate | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/0521793572?tag=edmonddante07-20 **Tags:** books, engineering-manufacturing, material-science ### 3. Elements of X-Ray Diffraction **Author:** B. D. Cullity Classic Addison-Wesley treatment built entirely on the Bragg law, in three parts: diffraction fundamentals, experimental methods including powder and single-crystal cameras, and applications such as phase identification, texture and stress measurement. Requires no reciprocal-lattice background. **Difficulty:** Intermediate | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/0201011743?tag=edmonddante07-20 **Tags:** books, engineering-manufacturing, material-science --- *This content is part of Dantes.io - Your Treasure Map to Knowledge* *Curated by humans at Dantes.io. Personal study use welcome; republishing this curation requires permission (team@dantes.io).* View this page online: https://dantes.io/subject/crystal-structures-and-defects