The Doctor of Philosophy program is designed to prepare each student to take an active part in the development and growth of the field of chemical engineering at all levels in industry and research organizations or in research and teaching in a university. To qualify for the Ph.D. program, a student must demonstrate competence in graduate course work and pass a written qualifying examination. Most students who qualify are eligible to proceed directly to the Ph.D. program without writing an M.S. thesis. Beginning with the second or third semester, each student, as part of the degree requirement occasionally assists in the instructional activities of the department. The current periodicity is one semester every other year. Advanced students have the opportunity to participate directly in the planning and presentation of undergraduate courses that are related to their thesis work. In addition, those considering the possibility of an academic career may elect to serve as a classroom instructor during the later phases of Ph.D. study.
Each student selects a major professor and an advisory committee to assist him or her in planning a program of course work and thesis research. Thirty hours of graduate course work (including those for the M.S.) are required for the Ph.D. degree. The thesis research should be original work that contributes significantly to new knowledge. Major research work is preceded by an oral preliminary examination, at which the student presents to the advisory committee a plan for research and demonstrates proficiency in the theory and experimental methods needed for its completion. The final Ph.D. examination is defense of the thesis.
Each university in the Unites States of America sets its own admission standards so there isn't the same criteria for all the students and the university can decide which applicants meet those standards. The fee for each application is between $35 to $100.
After the selections of the universities you want to attend, the best of all would be to contact each university for an application form and more admission information for the international students. Moreover, for a graduate or postgraduate program it's necessary to verify the admission requirements. Some programs require that you send your application directly to their department.
Admissions decisions are based on students's academic record and different test scores, such as TOEFL, the SAT or ACT (for undergraduate programs) and GRE or GMAT (for graduate programs). Admission decision is based on your academic results and motivation.